{"id":56208,"date":"2024-01-08T18:32:26","date_gmt":"2024-01-08T18:32:26","guid":{"rendered":"https:\/\/science-hub.click\/%E9%BB%84%E9%87%91%E6%AF%94%E3%81%AB%E3%81%A4%E3%81%84%E3%81%A6%E8%A9%B3%E3%81%97%E3%81%8F%E8%A7%A3%E8%AA%AC\/"},"modified":"2024-01-08T18:32:26","modified_gmt":"2024-01-08T18:32:26","slug":"%E9%BB%84%E9%87%91%E6%AF%94%E3%81%AB%E3%81%A4%E3%81%84%E3%81%A6%E8%A9%B3%E3%81%97%E3%81%8F%E8%A7%A3%E8%AA%AC","status":"publish","type":"post","link":"https:\/\/science-hub.click\/?p=56208","title":{"rendered":"\u9ec4\u91d1\u6bd4\u306b\u3064\u3044\u3066\u8a73\u3057\u304f\u89e3\u8aac"},"content":{"rendered":"<div><div><h2>\u5c0e\u5165<\/h2><div><div><figure class=\"wp-block-image size-large is-style-default\">\n<img decoding=\"async\" alt=\"\" class=\"aligncenter\" onerror=\"this.style.display=none;\" src=\"https:\/\/img.youtube.com\/vi\/XNg5XQJg3kQ\/0.jpg\" style=\"width:100%;\"\/><\/figure><div> <i>a<\/i>\u3068<i>b<\/i>\u306b\u3088\u3063\u3066\u5b9a\u7fa9\u3055\u308c\u308b\u6bd4\u7387\u306f\u3001 <i>a<\/i>\u304c<i>b<\/i>\u306b\u5bfe\u3057\u3066\u3001 <i>a<\/i> + <i>b<\/i>\u304c<i>a<\/i> &#8211; \u3067\u3042\u308b\u5834\u5408\u3001\u307e\u305f\u306f (a+b)\/a = a\/b \u306e\u5834\u5408\u306b\u6975\u7aef\u3067\u5e73\u5747\u7684\u3067\u3042\u308b\u3068\u8a00\u308f\u308c\u307e\u3059\u3002\u6bd4\u7387<i>a<\/i> \/ <i>b \u306f<\/i><b>\u9ec4\u91d1\u6bd4<\/b>\u3068\u7b49\u3057\u304f\u306a\u308a\u307e\u3059\u3002<\/div><\/div><\/div><p><b>\u9ec4\u91d1\u6bd4\u306f<\/b>\u3001\u6700\u521d\u306b<span><a href=\"https:\/\/science-hub.click\/?p=976\">geometry<\/a><\/span>\u3067\u5b9a\u7fa9\u3055\u308c\u305f\u6bd4\u7387\u3067\u3042\u308a\u30012 \u3064\u306e\u9577\u3055\u306e\u5408\u8a08 (a+b) \u3068\u6700\u5927\u306e\u9577\u3055 (a) \u306e\u6bd4\u7387\u304c\u5927\u304d\u3044\u65b9 (a) \u306e\u6bd4\u7387\u3068\u7b49\u3057\u304f\u306a\u308b\u3088\u3046\u306a 2 \u3064\u306e\u9577\u3055\u306e\u9593\u306e\u4e00\u610f\u306e\u6bd4\u7387\u3068\u3057\u3066\u5b9a\u7fa9\u3055\u308c\u307e\u3059\u3002 ) \u3088\u308a\u5c0f\u3055\u3044 (b)\u3001\u3064\u307e\u308a (a+b)\/a = a\/b \u306e\u5834\u5408\u3002\u3053\u306e\u7279\u6027\u3092\u691c\u8a3c\u3059\u308b\u305f\u3081\u306e\u30bb\u30b0\u30e1\u30f3\u30c8\u3092 2 \u3064\u306e\u9577\u3055\u306b\u5206\u5272\u3059\u308b\u3053\u3068\u306f\u3001<span><a href=\"https:\/\/science-hub.click\/?p=40098\">\u30e6\u30fc\u30af\u30ea\u30c3\u30c9\u306e<\/a><\/span><b>\u6975\u7aef\u306a\u7406\u7531\u3068\u5e73\u5747\u7684\u306a\u7406\u7531<\/b>\u3078\u306e\u5206\u5272\u3068\u547c\u3070\u308c\u307e\u3059\u3002\u9ec4\u91d1\u6bd4\u306f\u73fe\u5728\u3001\u30d1\u30eb\u30c6\u30ce\u30f3\u795e\u6bbf\u306e\u8a2d\u8a08\u306b\u9ec4\u91d1\u6bd4\u3092\u4f7f\u7528\u3057\u305f\u3068\u8a00\u308f\u308c\u3066\u3044\u308b\u5f6b\u523b\u5bb6\u30d5\u30a3\u30c7\u30a3\u30a2\u30b9\u306b\u3061\u306a\u3093\u3067\u3001\u6587\u5b57 \u03c6 (\u30d5\u30a1\u30a4) \u3067\u547c\u3070\u308c\u308b\u3053\u3068\u304c\u3088\u304f\u3042\u308a\u307e\u3059\u3002<\/p><p>\u3053\u306e<span><a href=\"https:\/\/science-hub.click\/?p=5442\">\u7121\u7406\u6570\u306f<\/a><\/span>\u3001\u65b9\u7a0b\u5f0f<i>x<\/i> <sup>2<\/sup> = <i>x<\/i> + 1 \u306b\u5bfe\u3059\u308b\u552f\u4e00\u306e\u6b63\u306e\u89e3\u3067\u3059\u3002\u6b63\u78ba\u306b\u306f\u6b21\u306e\u3068\u304a\u308a\u3067\u3059\u3002 <\/p><center><div class=\"math-formual notranslate\">$$ {\\frac{1+\\sqrt{5}}{2}} $$<\/div><\/center><p>\u307e\u305f\u306f\u7d04 1,618,033,989 \u306f\u3001\u6b63\u4e94\u89d2\u5f62\u3068\u9ec4\u91d1<span><a href=\"https:\/\/science-hub.click\/?p=94099\">\u9577\u65b9\u5f62<\/a><\/span>\u306e\u69cb\u7bc9\u306b\u95a2\u4e0e\u3057\u307e\u3059\u3002\u305d\u306e\u4ee3\u6570\u7684\u7279\u6027\u306b\u3088\u308a\u3001<span><a href=\"https:\/\/science-hub.click\/?p=9134\">\u30d5\u30a3\u30dc\u30ca\u30c3\u30c1<\/a><\/span>\u6570\u5217\u306b\u95a2\u9023\u4ed8\u3051\u3089\u308c\u3001\u6570\u591a\u304f\u306e\u5b9f\u8a3c\u306e\u6e90\u3067\u3042\u308b\u9ec4\u91d1\u6bd4\u306e<span><a href=\"https:\/\/science-hub.click\/?p=63579\">\u7b97\u8853<\/a><\/span>\u3092\u5b9a\u7fa9\u3059\u308b\u3053\u3068\u304c\u53ef\u80fd\u306b\u306a\u308a\u307e\u3059\u3002<\/p><p>\u3053\u306e\u5272\u5408\u306e\u6b74\u53f2\u306f\u3001\u30ae\u30ea\u30b7\u30e3\u53e4\u4ee3\u306e\u9060\u3044\u6642\u4ee3\u306b\u59cb\u307e\u308a\u307e\u3059\u3002\u30eb\u30cd\u30c3\u30b5\u30f3\u30b9\u6642\u4ee3\u3001\u30a4\u30bf\u30ea\u30a2\u306e\u30d5\u30e9\u30f3\u30b7\u30b9\u30b3\u4f1a\u4fee\u9053\u58eb<span><a href=\"https:\/\/science-hub.click\/?p=51703\">\u30eb\u30ab\u30fb\u30d1\u30c1\u30e7\u30fc\u30ea\u306f<\/a><\/span><span><a href=\"https:\/\/science-hub.click\/?p=66499\">\u6570\u5b66\u306e<\/a><\/span>\u6559\u79d1\u66f8\u3067\u3053\u306e\u6bd4\u7387\u3092\u5f37\u8abf\u3057\u3001<span><a href=\"https:\/\/science-hub.click\/?p=12224\">\u5929<\/a><\/span>\u304b\u3089\u9001\u3089\u308c\u305f<span><a href=\"https:\/\/science-hub.click\/?p=50545\">\u7406\u60f3<\/a><\/span>\u3068\u95a2\u9023\u4ed8\u3051\u3066\u795e\u306e\u6bd4\u4f8b\u3068\u540d\u4ed8\u3051\u307e\u3057\u305f\u3002\u3053\u306e\u30d3\u30b8\u30e7\u30f3\u306f\u3001\u4e3b\u306b\u9ec4\u91d1\u5206\u5272\u3068\u9ec4\u91d1\u6bd4\u3068\u3044\u3046\u7528\u8a9e\u304c\u751f\u307e\u308c\u305f<span>19<\/span>\u4e16\u7d00\u304b\u3089<span>20<\/span><sup>\u4e16\u7d00<\/sup>\u306b\u304b\u3051\u3066\u767a\u5c55\u3057<sup>\u3001<\/sup>\u7f8e\u7684<span><a href=\"https:\/\/science-hub.click\/?p=20918\">\u5074\u9762<\/a><\/span>\u3067\u8c4a\u304b\u306b\u306a\u308a\u307e\u3057\u305f\u3002<\/p><p>\u9ec4\u91d1\u6bd4\u306f\u3001<span><a href=\"https:\/\/science-hub.click\/?p=8818\">\u3072\u307e\u308f\u308a<\/a><\/span>\u306e\u96c4\u3057\u3079\u3084\u3001<span><a href=\"https:\/\/science-hub.click\/?p=80827\">\u30eb\u30fb\u30b3\u30eb\u30d3\u30e5\u30b8\u30a8<\/a><\/span>\u304c\u8a2d\u8a08\u3057\u305f\u8a18\u5ff5\u7891\u306a\u3069\u3001\u81ea\u7136\u3084\u4eba\u9593\u306e\u4f5c\u54c1\u306e\u4e2d\u306b\u898b\u3089\u308c\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002\u307e\u305f\u3001\u7279\u306b<i>\u7f8e\u3057\u3055<\/i>\u306b\u3064\u3044\u3066\u3001<span>\u4e16\u754c<\/span>\u3092\u8aac\u660e\u3059\u308b\u9375\u3068\u3057\u3066\u3082\u7814\u7a76\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u305d\u308c\u306f\u7f8e\u7684<span><a href=\"https:\/\/science-hub.click\/?p=11998\">\u7406\u8ad6<\/a><\/span>\u3068\u3057\u3066\u78ba\u7acb\u3055\u308c\u3001<span><a href=\"https:\/\/science-hub.click\/?p=87911\">\u79d1\u5b66\u7684<\/a><\/span>\u307e\u305f\u306f\u795e\u79d8\u7684\u306a\u6027\u8cea\u306e\u8b70\u8ad6\u306b\u3088\u3063\u3066\u6b63\u5f53\u5316\u3055\u308c\u307e\u3059\u3002\u3064\u307e\u308a\u3001\u81ea\u7136\u3068<span><a href=\"https:\/\/science-hub.click\/?p=86235\">\u751f\u547d<\/a><\/span>\u306e\u79d1\u5b66\u306b\u304a\u3051\u308b\u904d\u5728\u6027\u3001<span><a href=\"https:\/\/science-hub.click\/?p=36798\">\u4eba\u4f53<\/a><\/span>\u306e\u30d7\u30ed\u30dd\u30fc\u30b7\u30e7\u30f3\u3001\u307e\u305f\u306f\u7d75\u753b\u3001<span><a href=\"https:\/\/science-hub.click\/?p=30784\">\u5efa\u7bc9<\/a><\/span>\u3001\u97f3\u697d\u306a\u3069\u306e\u82b8\u8853\u306b\u304a\u3051\u308b\u666e\u904d\u6027\u3067\u3059\u3002<\/p><p>\u4f5c\u66f2\u5bb6\u30af\u30bb\u30ca\u30ad\u30b9\u3084\u8a69\u4eba\u30dd\u30fc\u30eb\u30fb\u30f4\u30a1\u30ec\u30ea\u30fc\u306a\u3069\u306e\u7279\u5b9a\u306e\u82b8\u8853\u5bb6\u306f\u3001\u591a\u304b\u308c\u5c11\u306a\u304b\u308c\u3053\u306e\u30d3\u30b8\u30e7\u30f3\u306e\u5927\u90e8\u5206\u3092\u5fe0\u5b9f\u306b\u5b88\u308a\u3001\u975e\u5e38\u306b\u4eba\u6c17\u306e\u3042\u308b\u66f8\u7c4d\u306b\u3088\u3063\u3066\u88cf\u4ed8\u3051\u3089\u308c\u307e\u3057\u305f\u3002<span><a href=\"https:\/\/science-hub.click\/?p=63745\">\u533b\u5b66<\/a><\/span>\u3001\u8003\u53e4\u5b66\u3001\u3042\u308b\u3044\u306f\u81ea\u7136\u79d1\u5b66\u3084\u751f\u547d\u79d1\u5b66\u3092\u901a\u3058\u3066\u3001<span><a href=\"https:\/\/science-hub.click\/?p=43242\">\u79d1\u5b66\u306f<\/a><\/span>\u3053\u306e\u7a2e\u306e\u7406\u8ad6\u3092\u7121\u52b9\u306b\u3057\u307e\u3059\u3002\u306a\u305c\u306a\u3089\u3001\u305d\u308c\u3089\u306f\u4e71\u7528\u306a\u4e00\u822c\u5316\u3068\u4e0d\u6b63\u78ba\u306a\u4eee\u8aac\u306b\u57fa\u3065\u3044\u3066\u3044\u308b\u304b\u3089\u3067\u3059\u3002<\/p><h2>\u30b8\u30aa\u30e1\u30c8\u30ea<\/h2><h3><span>\u5272\u5408<\/span><\/h3><div><div><div><figure class=\"wp-block-image size-large is-style-default\">\n<img decoding=\"async\" alt=\"\" class=\"aligncenter\" onerror=\"this.style.display=none;\" src=\"https:\/\/img.youtube.com\/vi\/0996XiPKjNY\/0.jpg\" style=\"width:100%;\"\/><\/figure><div><center><b>\u56f31<\/b><\/center>\u4e09\u89d2\u5f62<i>OAB<\/i>\u3068<i>OCA \u306f\u3001<\/i>\u9577\u3055<i>a<\/i>\u3068<i>b \u304c<\/i>\u9ec4\u91d1\u6bd4\u306b\u5f93\u3046\u5834\u5408\u306b\u9650\u308a\u3001\u76f8\u4f3c\u306b\u306a\u308a\u307e\u3059\u3002<\/div><\/div><\/div><\/div><p>\u9ec4\u91d1\u6bd4\u306b\u306f\u3001\u6bd4\u7387\u306e\u6982\u5ff5\u306b\u57fa\u3065\u3044\u305f\u5e7e\u4f55\u5b66\u7684\u8d77\u6e90\u306e\u6700\u521d\u306e<span><a href=\"https:\/\/science-hub.click\/?p=74671\">\u5b9a\u7fa9<\/a><\/span>\u304c\u3042\u308a\u307e\u3059\u3002<\/p><div><p><strong>\u9ec4\u91d1\u6bd4\u306e\u5b9a\u7fa9<\/strong><span>\u2014<\/span> 2 \u3064\u306e\u53b3\u5bc6\u306b\u6b63\u306e\u9577\u3055<i>a<\/i>\u304a\u3088\u3073<i>b \u306f<\/i>\u3001 <i>a<\/i>\u3068<i>b<\/i>\u306e\u6bd4\u304c<i>a<\/i>\u306b\u5bfe\u3059\u308b<i>a<\/i> + <i>b<\/i>\u306e\u6bd4\u3068\u7b49\u3057\u3044\u5834\u5408\u306b\u306e\u307f<b>\u9ec4\u91d1\u6bd4\u306b<\/b>\u5f93\u3044\u307e\u3059\u3002 <\/p><center><div class=\"math-formual notranslate\">$$ { \\frac{a}{b} = \\frac{a+b}{a} \\quad (1)} $$<\/div><\/center><\/div><p>\u3053\u306e\u5b9a\u7fa9\u306b\u306f\u56f3\u5f0f\u7684\u306a\u89e3\u91c8\u304c\u3042\u308a\u3001<i>\u56f3 1<\/i>\u306b\u793a\u3059\u76f8\u4f3c\u306a\u4e09\u89d2\u5f62\u306e\u7279\u6027\u306e\u7d50\u679c\u3067\u3059\u3002\u9752\u8272\u306e\u30bb\u30b0\u30e1\u30f3\u30c8\u306e<span><a href=\"https:\/\/science-hub.click\/?p=17420\">\u9577\u3055<\/a><\/span>\u306f<i>a<\/i> \u3001<span><a href=\"https:\/\/science-hub.click\/?p=4914\">\u8d64\u8272<\/a><\/span>\u306e\u30bb\u30b0\u30e1\u30f3\u30c8\u306f\u9577\u3055<i>b<\/i>\u3067\u3059\u3002 <i>a<\/i>\u3068<i>b<\/i>\u3067\u5b9a\u7fa9\u3055\u308c\u308b\u6bd4\u7387\u304c\u9ec4\u91d1\u6bd4\u3067\u3042\u308b\u3068\u8a00\u3046\u306e\u306f\u3001\u4e09\u89d2\u5f62<i>OAB<\/i>\u3068<i>OCA<\/i>\u304c\u76f8\u4f3c\u3067\u3042\u308b\u3068\u8a00\u3046\u3053\u3068\u3067\u3059\u3002\u30e6\u30fc\u30af\u30ea\u30c3\u30c9\u306f\u3001\u5f7c\u304c<i>\u300c\u6975\u30fb\u4e2d\u7406\u300d<\/i>\u3068\u547c\u3076<i>\u9ec4\u91d1\u6bd4\u3092<\/i>\u6b21\u306e\u3088\u3046\u306b\u8868\u73fe\u3057\u307e\u3059\u3002<i>\u7dda\u5168\u4f53\u304c\u6700\u5927\u306e\u30bb\u30b0\u30e1\u30f3\u30c8\u306b\u3042\u308b\u3068\u304d\u3001\u6700\u5927\u306e\u30bb\u30b0\u30e1\u30f3\u30c8\u304c\u6700\u5c0f\u306e\u30bb\u30b0\u30e1\u30f3\u30c8\u306b\u3042\u308b\u3068\u304d\u3001\u7dda\u306f\u6975\u30fb\u4e2d\u7406\u306b\u5206\u304b\u308c\u3066\u3044\u308b\u3068\u8a00\u308f\u308c\u307e\u3059\u3002<\/i><\/p><p> <i>a<\/i>\u3068<i>b \u304c<\/i>\u6975\u7aef\u304b\u3064\u5e73\u5747\u7684\u306a\u6bd4\u7387\u306b\u3042\u308b\u5834\u5408\u3001\u6bd4\u7387<i>a<\/i> \/ <i>b<\/i>\u306f\u4e00\u5b9a\u3068\u306a\u308a\u3001\u9ec4\u91d1\u6bd4\u306e\u65b0\u3057\u3044\u5b9a\u7fa9\u304c\u5f97\u3089\u308c\u307e\u3059\u3002<\/p><div><p><strong>\u9ec4\u91d1\u6bd4\u306e\u5b9a\u7fa9<\/strong><span>\u2014<\/span>\u9ec4\u91d1\u6bd4\u306f\u3001 <i>a<\/i>\u3068<i>b \u304c<\/i><i>\u6975\u7aef\u306a\u7406\u7531\u3068\u5e73\u5747\u7684\u306a\u7406\u7531<\/i>\u306b\u6bd4\u4f8b\u3059\u308b 2 \u3064\u306e\u6570\u3067\u3042\u308b\u5834\u5408\u3001\u5206\u6570<i>a<\/i> \/ <i>b<\/i>\u306b\u7b49\u3057\u3044\u3001\u03c6 \u3067\u793a\u3055\u308c\u308b\u6b63\u306e<span><a href=\"https:\/\/science-hub.click\/?p=93137\">\u5b9f\u6570<\/a><\/span>\u3067\u3059\u3002\u305d\u308c\u306f\u6b21\u306e\u5f0f\u3067\u4e0e\u3048\u3089\u308c\u307e\u3059\u3002 <\/p><center><div class=\"math-formual notranslate\">$$ {\\varphi = \\frac{1 + \\sqrt{5}}{2} \\simeq 1,618\\, 033\\, 988\\, 749\\, 894\\, 848\\, 204\\, 586\\, 834\\, 365} $$<\/div><\/center><\/div><p>\u9ec4\u91d1\u6bd4\u3092\u5b9a\u7fa9\u3059\u308b\u6bd4\u7387<i>(1)<\/i>\u306f\u6b21\u306e\u3088\u3046\u306b\u8a18\u8ff0\u3067\u304d\u3001\u7b49\u5f0f\u306b<i>a<\/i> \/ <i>b<\/i>\u3092\u4e57\u7b97\u3059\u308b\u3053\u3068\u3067\u5f97\u3089\u308c\u307e\u3059\u3002 <\/p><center><div class=\"math-formual notranslate\">$$ { \\frac {a+b}a =\\frac ab \\Leftrightarrow 1 + \\frac ba = \\frac ab \\Leftrightarrow \\frac ab + 1 = \\left(\\frac ab\\right)^2 \\Leftrightarrow  \\left(\\frac ab\\right)^2 &#8211; \\frac ab &#8211; 1 =  0} $$<\/div><\/center><p>\u3053\u308c\u306f\u3001\u03c6 \u304c<span>\u4e8c\u6b21<\/span>\u65b9\u7a0b\u5f0f\u306e\u89e3\u3067\u3042\u308b\u3053\u3068\u3092\u610f\u5473\u3057\u307e\u3059\u3002\u3053\u306e\u7279\u6027\u306b\u3088\u308a\u3001\u6b21\u306e 3 \u756a\u76ee\u306e\u5b9a\u7fa9\u304c\u751f\u3058\u307e\u3059\u3002<\/p><div><p><strong>\u9ec4\u91d1\u6bd4\u306e\u5225\u306e\u5b9a\u7fa9<\/strong><span>\u2014<\/span>\u9ec4\u91d1\u6bd4\u306f\u3001\u6b21\u306e\u4e8c\u6b21\u65b9\u7a0b\u5f0f\u306e\u4e00\u610f\u306e\u6b63\u306e\u89e3\u3067\u3059\u3002 <\/p><center><div class=\"math-formual notranslate\">$$ {x^2 &#8211; x &#8211; 1 = 0 \\;} $$<\/div><\/center><\/div><p>\u3053\u306e\u65b9\u7a0b\u5f0f\u306f\u3001\u672a\u77e5\u306e<i>x<\/i>\u306e<span><a href=\"https:\/\/science-hub.click\/?p=35670\">\u9006\u6570<\/a><\/span>\u304c<i>x<\/i> &#8211; 1 \u306b\u7b49\u3057\u3044\u3053\u3068\u3001\u307e\u305f\u306f 1\/ <i>x<\/i>\u306e<span><a href=\"https:\/\/science-hub.click\/?p=39064\">\u5c0f\u6570\u5c55\u958b\u304c<\/a><\/span><i>x<\/i>\u306e<span>\u6574\u6570\u90e8\u5206<\/span>\u3092\u5dee\u3057\u5f15\u3044\u305f\u3082\u306e\u3068\u540c\u3058\u3067\u3042\u308b\u3053\u3068\u3092\u793a\u3059\u65b9\u7a0b\u5f0f\u3068\u7b49\u4fa1\u3067\u3059\u3002<\/p><p>\u9ec4\u91d1\u6bd4\u3092\u5b9a\u7fa9\u3059\u308b\u306b\u306f 2 \u3064\u306e\u65b9\u6cd5\u304c\u3042\u308a\u307e\u3059\u30021 \u3064\u306f\u6bd4\u7387\u3067\u8868\u3055\u308c\u308b\u5e7e\u4f55\u5b66\u7684\u65b9\u6cd5\u3001\u3082\u3046 1 \u3064\u306f\u65b9\u7a0b\u5f0f\u306e\u4e00\u610f\u306e\u6b63\u306e\u6839\u3068\u3057\u3066\u6570\u5024\u3092\u5b9a\u7fa9\u3059\u308b\u4ee3\u6570\u7684\u65b9\u6cd5\u3067\u3059\u3002\u3053\u306e\u4e8c\u91cd\u306e\u30a2\u30d7\u30ed\u30fc\u30c1\u306b\u3088\u308a\u3001\u5e7e\u4f55\u5b66\u7684\u624b\u6cd5 (<span><a href=\"https:\/\/science-hub.click\/?p=50843\">\u5e7e\u4f55\u4ee3\u6570<\/a><\/span>\u3068\u547c\u3070\u308c\u307e\u3059) \u3092\u4f7f\u7528\u3057\u3066\u3001<span><a href=\"https:\/\/science-hub.click\/?p=26454\">\u4ee3\u6570<\/a><\/span>\u554f\u984c (\u3053\u306e\u5834\u5408\u306f 2 \u6b21\u65b9\u7a0b\u5f0f) \u3092\u89e3\u304f\u3053\u3068\u304c\u53ef\u80fd\u306b\u306a\u308a\u307e\u3059\u3002<\/p><div align=\"left\"><div title=\"[\u62e1\u5927\u3059\u308b]\"><div align=\"left\"><dl><dd><ul><li><b>\u6975\u7aef\u306a\u7406\u7531\u3068\u5e73\u5747\u7684\u306a\u7406\u7531\u306e\u5272\u5408\u306e\u69cb\u7bc9:<\/b><\/li><\/ul><\/dd><\/dl><p>\u76ee\u7684\u306f\u3001<i>\u56f3 1<\/i>\u3092\u69cb\u7bc9\u3059\u308b\u3053\u3068\u3067\u3059\u3002<span><a href=\"https:\/\/science-hub.click\/?p=82055\">\u307e\u305a<\/a><\/span>\u3001\u4e92\u3044\u306b\u8ddd\u96e2<i>a<\/i>\u306b\u3042\u308b\u30e6\u30fc\u30af\u30ea\u30c3\u30c9\u5e73\u9762\u306e 2 \u3064\u306e\u70b9<i>O<\/i>\u3068<i>A \u3092<\/i>\u8003\u3048\u307e\u3059\u3002\u7dda<i>AI<\/i>\u3068<i>OA<\/i>\u304c\u5782\u76f4\u306b\u306a\u308a\u3001\u8ddd\u96e2<i>AI<\/i>\u304c<i>\/<\/i> 2 \u306b\u7b49\u3057\u304f\u306a\u308b\u3088\u3046\u306a<span><a href=\"https:\/\/science-hub.click\/?p=43578\">\u70b9<\/a><\/span>\u3092<i>I<\/i>\u3068\u3057\u307e\u3059\u3002\u4e2d\u5fc3<i>I<\/i>\u3092\u6301\u3061<i>A \u3092<\/i>\u901a\u308b<span><a href=\"https:\/\/science-hub.click\/?p=69721\">\u5186<\/a><\/span>\u3092 \u03b3 \u3068\u3057\u307e\u3059\u3002\u6700\u5f8c\u306b\u30012 \u3064\u306e\u70b9<i>B<\/i>\u3068<i>C \u306f\u3001<\/i>\u56f3\u306b\u793a\u3055\u308c\u3066\u3044\u308b\u9806\u5e8f\u3067\u76f4\u7dda<i>OI<\/i>\u3068\u5186 \u03b3 \u306e\u4ea4\u70b9\u306b\u306a\u308a\u307e\u3059\u3002 <i>b \u3092<\/i><i>O<\/i>\u304b\u3089<i>B<\/i>\u307e\u3067\u306e\u8ddd\u96e2\u3068\u3057\u3066\u5b9a\u7fa9\u3057\u307e\u3059\u3002\u69cb\u9020\u4e0a\u3001 <i>B<\/i>\u304b\u3089<i>C<\/i>\u307e\u3067\u306e\u8ddd\u96e2\u306f<i>a<\/i>\u306b\u7b49\u3057\u304f\u306a\u308a\u307e\u3059\u3002<\/p><p>\u56f3\u3092\u4f5c\u6210\u3057\u305f\u3089\u3001\u4e09\u89d2\u5f62<i>OAB<\/i>\u3068<i>OCA<\/i>\u304c\u76f8\u4f3c\u3067\u3042\u308b\u3053\u3068\u3092\u793a\u3059\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u3053\u308c\u3092\u884c\u3046\u306b\u306f\u3001\u305d\u308c\u3089\u306b 2 \u3064\u306e\u5171\u901a\u70b9\u304c\u3042\u308b\u3053\u3068\u3092\u793a\u3059\u3060\u3051\u3067\u5341\u5206\u3067\u3059\u3002<span><a href=\"https:\/\/science-hub.click\/?p=108487\">\u89d2<\/a><\/span><i>AOB<\/i>\u306f 2 \u3064\u306e\u4e09\u89d2\u5f62\u306b\u3088\u3063\u3066\u5171\u6709\u3055\u308c\u308b\u305f\u3081\u3001\u89d2<i>BAO<\/i>\u304c<i>OCA<\/i>\u306b\u7b49\u3057\u3044\u3053\u3068\u3092\u793a\u3059\u3060\u3051\u3067\u5341\u5206\u3067\u3059\u3002\u7dda<i>OA \u306f<\/i>\u5186\u306b\u63a5\u3057\u3066\u3044\u308b\u305f\u3081\u3001\u3053\u306e\u7d50\u679c\u306f\u5185\u63a5\u89d2<span>\u5b9a\u7406<\/span>\u306e\u7d50\u679c\u3067\u3059\u3002\u4e09\u89d2\u5f62\u306f\u975e\u5e38\u306b\u3088\u304f\u4f3c\u3066\u3044\u307e\u3059\u3002<\/p><p> 2 \u3064\u306e\u76f8\u4f3c\u306a\u4e09\u89d2\u5f62\u306f\u6bd4\u4f8b\u3057\u3066\u304a\u308a\u3001\u5927\u304d\u306a<span><a href=\"https:\/\/science-hub.click\/?p=83821\">\u4e09\u89d2\u5f62<\/a><\/span>\u306e\u5e95\u8fba<i>OC \u304c<\/i>\u5c0f\u3055\u306a\u4e09\u89d2\u5f62\u306e\u5e95\u8fba<i>OA<\/i>\u306b\u95a2\u4fc2\u3057\u3001\u5927\u304d\u306a\u4e09\u89d2\u5f62\u306e\u4e00\u8fba<i>OA \u304c<\/i>\u5c0f\u3055\u306a\u4e09\u89d2\u5f62\u306e\u540c\u7b49\u306e\u8fba<i>OB<\/i>\u306b\u95a2\u4fc2\u3057\u3066\u3044\u308b\u3053\u3068\u3092\u793a\u3057\u3066\u3044\u307e\u3059\u3002\u5f0f<i>(1)<\/i>\u304c\u5f97\u3089\u308c\u307e\u3059\u3002<\/p><dl><dd><ul><li><b>\u5024<i>b<\/i>\u306e\u4e00\u610f\u6027:<\/b><\/li><\/ul><\/dd><\/dl><p> <i>a \u3092<\/i>\u53b3\u5bc6\u306b\u6b63\u306e\u9577\u3055\u3068\u3057\u3001 <i>c \u3092<\/i><i>a<\/i>\u3088\u308a\u5c0f\u3055\u3044\u5b9f\u6570\u3068\u3057\u3001\u6bd4\u7387<i>a<\/i> \/ <i>c<\/i>\u304c\u6975\u7aef\u304b\u3064\u5e73\u5747\u7684\u306a\u6bd4\u7387\u306b\u306a\u308b\u3088\u3046\u306b\u3057\u307e\u3059\u3002 <i>OBC \u3092\u3001<\/i>\u8ddd\u96e2<i>OB<\/i>\u304c<i>c<\/i>\u306b\u7b49\u3057\u304f\u3001 <i>BC<\/i>\u304c<i>a<\/i>\u306b\u7b49\u3057\u3044\u3088\u3046\u306a 3 \u3064\u306e\u6574\u5217\u3057\u305f\u70b9\u3067\u3042\u308b\u3068\u3057\u307e\u3059\u3002 \u03b3\u3092<span><a href=\"https:\/\/science-hub.click\/?p=109019\">\u76f4\u5f84<\/a><\/span><i>BC<\/i>\u306e\u5186\u3001 <i>A\u3092<\/i>\u7dda<i>OA\u304c<\/i>\u5186\u306b\u63a5\u3059\u308b\u3088\u3046\u306a\u03b3\u306e\u70b9\u3068\u3059\u308b\u3002<\/p><p>\u524d\u306e<span><a href=\"https:\/\/science-hub.click\/?p=52981\">\u30c7\u30e2<\/a><\/span>\u306e\u8b70\u8ad6\u306f\u3001\u4e09\u89d2\u5f62<i>OAB<\/i>\u3068<i>OCA<\/i>\u304c\u76f8\u4f3c\u3067\u3042\u308a\u3001\u5f97\u3089\u308c\u305f\u56f3\u304c\u524d\u306e\u6bb5\u843d\u306e\u3082\u306e\u3067\u3042\u308b\u3053\u3068\u3092\u793a\u3057\u3066\u3044\u307e\u3059\u3002\u7d50\u8ad6\u3068\u3057\u3066\u3001\u5024<i>c \u306f<\/i>\u3001\u524d\u306e\u6bb5\u843d\u3067\u8a08\u7b97\u3055\u308c\u305f<i>b<\/i>\u3068\u7b49\u3057\u304f\u306a\u308a\u307e\u3059\u3002\u3053\u308c\u306f<i>b<\/i>\u306e\u4e00\u610f\u6027\u3092\u793a\u3057\u3066\u3044\u307e\u3059\u3002<\/p><dl><dd><ul><li> <b>\u03c6\u306e\u5e7e\u4f55\u5b66\u7684\u6c7a\u5b9a:<\/b><\/li><\/ul><\/dd><\/dl><p> \u03c6 \u306e\u5024\u3092\u8a08\u7b97\u3059\u308b\u306b\u306f\u3001 <i>a<\/i>\u3068<i>b \u304c<\/i>\u6975\u7aef\u304b\u3064\u5e73\u5747\u7684\u306a\u6bd4\u7387\u306b\u3042\u308b\u5834\u5408\u3001( <i>a<\/i> + <i>b<\/i> ) \/ <i>a \u306f<\/i>\u03c6 \u306b\u7b49\u3057\u3044\u3068\u3044\u3046\u4e8b\u5b9f\u3092\u5229\u7528\u3067\u304d\u307e\u3059\u3002\u9577\u3055<i>a \u306f<\/i>\u4efb\u610f\u306b\u9078\u629e\u3067\u304d\u307e\u3059\u3002\u7c21\u5358\u306a\u65b9\u6cd5\u306f\u30011 \u306b\u7b49\u3057\u3044\u9577\u3055\u3092\u9078\u629e\u3059\u308b\u3053\u3068\u3067\u3059\u3002\u305d\u306e\u5834\u5408\u3001\u5024 \u03c6 \u306f<i>a<\/i> + <i>b<\/i>\u307e\u305f\u306f 1 + <i>b<\/i>\u306b\u7b49\u3057\u304f\u306a\u308a\u307e\u3059\u3002 <i>OC<\/i>\u306e\u9577\u3055\u306f\u3001 <i>OB<\/i>\u3068<i>EB<\/i>\u306e\u9577\u3055\u306e\u5408\u8a08\u306b\u7b49\u3057\u3044\u305f\u3081\u3001\u9ec4\u91d1\u6bd4\u3067\u3042\u308b<i>b<\/i> + 1 \u306b\u7b49\u3057\u304f\u306a\u308a\u307e\u3059\u3002\u3053\u3053\u3067\u3001\u6570\u5b57 1 \u306f\u3001\u69cb\u9020\u4e0a\u3001\u534a\u5f84 1\/2 \u306e\u5186<i>C<\/i>\u306e\u76f4\u5f84\u3092\u8868\u3057\u307e\u3059\u3002<\/p><p> <i>OC<\/i>\u306e\u9577\u3055\u306f \u03c6 \u306b\u7b49\u3057\u304f\u3001 <i>OI<\/i>\u3068<i>IC<\/i>\u306e\u9577\u3055\u306e\u5408\u8a08\u306b\u3082\u7b49\u3057\u304f\u306a\u308a\u307e\u3059\u3002<span><a href=\"https:\/\/science-hub.click\/?p=102121\">\u30d4\u30bf\u30b4\u30e9\u30b9\u306e\u5b9a\u7406\u306f\u3001<\/a><\/span> <i>O<\/i>\u3068<i>I<\/i>\u306e\u9593\u306e\u8ddd\u96e2\u304c \u221a5\/2\u3001\u3064\u307e\u308a\u8fba\u306e\u9577\u3055\u304c 1 \u3068 1\/2 \u306e\u9577\u65b9\u5f62\u306e<span><a href=\"https:\/\/science-hub.click\/?p=100875\">\u5bfe\u89d2\u7dda<\/a><\/span>\u306e\u9577\u3055\u306b\u7b49\u3057\u3044\u3053\u3068\u3092\u793a\u3057\u3066\u3044\u307e\u3059\u3002 <i>I<\/i>\u304b\u3089<i>C<\/i>\u307e\u3067\u306e\u305d\u308c\u306f\u5186\u306e\u534a\u5f841\/2\u306b\u7b49\u3057\u3044\u3002\u9577\u3055<i>OC \u306f<\/i>\u9ec4\u91d1\u6570 \u03c6 \u3068 1\/2.(1+\u221a5) \u306e\u4e21\u65b9\u306b\u7b49\u3057\u304f\u3001\u671b\u307e\u3057\u3044\u7d50\u679c\u3092\u793a\u3057\u3066\u3044\u307e\u3059\u3002<\/p><dl><dd><ul><li> <b>\u03c6 \u306e\u4ee3\u6570\u7684\u6c7a\u5b9a:<\/b><\/li><\/ul><\/dd><\/dl><p> \u03c6 \u3092\u8a08\u7b97\u3059\u308b\u305f\u3081\u306e\u5225\u306e\u89e3\u6c7a\u7b56\u306f\u30013 \u756a\u76ee\u306e\u5b9a\u7fa9<span><a href=\"https:\/\/science-hub.click\/?p=61221\">\u3092\u4f7f\u7528\u3059\u308b<\/a><\/span>\u3053\u3068\u3067\u69cb\u6210\u3055\u308c\u307e\u3059\u3002\u5024 \u03c6 \u306f\u3001\u6b21\u306e\u4e8c\u6b21\u65b9\u7a0b\u5f0f\u306e\u6b63\u306e\u89e3\u306b\u3088\u3063\u3066<span>\u4e0e\u3048\u3089\u308c\u307e\u3059<\/span>\u3002 <\/p><center><div class=\"math-formual notranslate\">$$ {x^2 &#8211; x &#8211; 1 = 0 \\;} $$<\/div><\/center>\u4ee5\u4e0b\u3068\u540c\u7b49\u3067\u3042\u308b\u3053\u3068\u3092\u7c21\u5358\u306b\u793a\u3059\u3053\u3068\u304c\u3067\u304d\u308b<span><a href=\"https:\/\/science-hub.click\/?p=66517\">\u5f0f<\/a><\/span><center><div class=\"math-formual notranslate\">$$ {\\frac{1}{x}=x &#8211; 1  \\;} $$<\/div><\/center><p>\u4e8c\u6b21\u65b9\u7a0b\u5f0f\u306e<span><a href=\"https:\/\/science-hub.click\/?p=81583\">\u5224\u5225\u5f0f<\/a><\/span>\u306f 1 + 4 = 5 \u306b\u7b49\u3057\u304f\u3001\u89e3\u306f 2 \u3064\u3042\u308a\u30011 \u3064\u3060\u3051\u304c\u6b63\u3067\u3042\u308b\u3068\u63a8\u5b9a\u3055\u308c\u307e\u3059\u3002 <\/p><center><div class=\"math-formual notranslate\">$$ {\\varphi = \\frac {1 + \\sqrt 5}2\\;} $$<\/div><\/center><p>\u5224\u5225\u5f0f\u3092\u4f7f\u7528\u3057\u306a\u3044\u8a08\u7b97\u306f\u3001\u4e8c\u6b21\u65b9\u7a0b\u5f0f\u306e\u8a18\u4e8b\u306e\u5e8f\u7ae0\u3067\u63d0\u6848\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p><\/div><\/div><\/div><h3><span>\u9ec4\u91d1\u9577\u65b9\u5f62\u3068<span><a href=\"https:\/\/science-hub.click\/?p=46460\">\u87ba\u65cb<\/a><\/span><\/span><\/h3><p>\u524d\u8ff0\u306e\u8a08\u7b97\u3067\u306f\u3001\u5b9a\u898f\u3068\u30b3\u30f3\u30d1\u30b9\u3092\u4f7f\u7528\u3057\u3066\u3001\u6975\u7aef\u306a\u7406\u7531\u3068\u5e73\u5747\u7684\u306a\u7406\u7531\u306e\u5272\u5408\u3092\u63cf\u304f\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u305d\u306e\u65b9\u6cd5\u3092\u5de6\u306e\u56f3\u306b\u793a\u3057\u307e\u3059\u3002\u4e2d\u5fc3<i>C<\/i> \u3001\u534a\u5f84<i>1<\/i>\u306e\u5186 (\u30aa\u30ec\u30f3\u30b8\u8272) \u3092\u63cf\u304d\u307e\u3059\u3002\u6b21\u306b\u3001\u534a\u5f84\u306e\u7aef\u304b\u3089\u3001\u534a\u5f84\u306b<span><a href=\"https:\/\/science-hub.click\/?p=77905\">\u5782\u76f4\u306a<\/a><\/span>\u9577\u3055 1\/2 \u306e\u7dda\u5206 (\u7dd1\u8272) \u3092\u4f5c\u6210\u3057\u3001\u4e2d\u5fc3<i>C&#8217;<\/i> \u3001\u534a\u5f84 1\/2 \u306e\u5186\u3092<span><a href=\"https:\/\/science-hub.click\/?p=59617\">\u30c8\u30ec\u30fc\u30b9\u3057\u307e\u3059<\/a><\/span>\u3002\u7aef\u304c<i>C<\/i>\u3067\u3042\u308a\u3001 <i>C<\/i> <i>C&#8217;<\/i>\u306e\u5ef6\u9577\u7dda\u4e0a\u306b\u3042\u308b\u5186<i>C&#8217;<\/i>\u306e\u70b9\u3092\u6301\u3064<span><a href=\"https:\/\/science-hub.click\/?p=66925\">\u9752\u3044<\/a><\/span>\u7dda\u5206\u306f\u3001\u9577\u3055 \u03c6 \u3067\u3059\u3002<\/p><div><div> <figure class=\"wp-block-image size-large is-style-default\">\n<img decoding=\"async\" alt=\"\" class=\"aligncenter\" onerror=\"this.style.display=none;\" src=\"https:\/\/img.youtube.com\/vi\/iBTOz1OJNYY\/0.jpg\" style=\"width:100%;\"\/><\/figure><div>\u9ec4\u91d1\u9577\u65b9\u5f62\u3068\u795e\u8056\u306a\u30d7\u30ed\u30dd\u30fc\u30b7\u30e7\u30f3<\/div><\/div><\/div><p>\u3053\u306e\u65b9\u6cd5\u3067\u306f\u3001<b>\u9ec4\u91d1\u9577\u65b9\u5f62<\/b>\u3001\u3064\u307e\u308a<i>a<\/i>\u3068<i>b<\/i>\u304c\u6975\u7aef\u306a\u6bd4\u7387\u3068\u5e73\u5747\u7684\u306a\u6bd4\u7387\u306b\u306a\u308b\u3088\u3046\u306a\u9577\u3055<i>a<\/i>\u3068<span><a href=\"https:\/\/science-hub.click\/?p=17054\">\u5e45<\/a><\/span><i>b<\/i>\u306e\u9577\u65b9\u5f62\u3092\u69cb\u7bc9\u3059\u308b\u3053\u3068\u3082\u3067\u304d\u307e\u3059\u3002\u8a00\u3044\u63db\u3048\u308c\u3070\u3001\u9577\u65b9\u5f62\u306f\u9577\u3055\u3068\u5e45\u306e\u6bd4\u7387\u304c\u9ec4\u91d1\u6bd4\u306b\u7b49\u3057\u3044\u5834\u5408\u3001\u9ec4\u91d1\u6bd4\u3067\u3042\u308b\u3068\u8a00\u308f\u308c\u307e\u3059\u3002<\/p><p>\u9577\u3055<i>a<\/i> \u3001\u5e45<i>b<\/i>\u306e\u9ec4\u91d1\u9577\u65b9\u5f62\u3092\u63cf\u304f\u305f\u3081\u306e\u6700\u3082\u7c21\u5358\u306a\u65b9\u6cd5\u306f\u3001\u8fba<i>b<\/i>\u306e<span><a href=\"https:\/\/science-hub.click\/?p=94249\">\u6b63\u65b9\u5f62<\/a><\/span>\u3092\u63cf\u304f\u3053\u3068\u3067\u3059\u3002\u5e95\u8fba\u306e\u771f\u3093\u4e2d\u3092\u4e2d\u5fc3\u3068\u3057\u3066\u3001\u5411\u304b\u3044\u5408\u30462\u3064\u306e\u9802\u70b9\u3092\u901a\u308b\u5186\u3092\u63cf\u304d\u307e\u3059\u3002\u6b63\u65b9\u5f62\u306e\u5e95\u8fba\u3092\u5ef6\u9577\u3059\u308b\u7dda\u3068\u5186\u306e\u4ea4\u70b9\u304c\u3001\u9ec4\u91d1\u9577\u65b9\u5f62\u306e\u5e95\u8fba\u306e\u7aef\u3092\u6c7a\u5b9a\u3057\u307e\u3059\u3002\u53f3\u56f3\u306b\u793a\u3059\u3088\u3046\u306b\u3001\u8fba\u306e\u9577\u3055<i>b<\/i>\u306e\u6b63\u65b9\u5f62\u3001\u8fba\u306e\u9577\u3055<i>b<\/i>\u306e\u9577\u65b9\u5f62\u3001\u304a\u3088\u3073<i>a<\/i> &#8211; <i>b \u3092<\/i>\u52a0\u7b97\u3057\u3066\u69cb\u6210\u3055\u308c\u3066\u3044\u308b\u3088\u3046\u306b\u898b\u3048\u307e\u3059\u3002\u7c21\u5358\u306b\u8a08\u7b97\u3059\u308b\u3068\u3001\u3053\u306e\u9577\u65b9\u5f62\u306f\u307e\u3060\u91d1\u8272\u3067\u3042\u308b\u3053\u3068\u304c\u308f\u304b\u308a\u307e\u3059\u3002 <\/p><center><div class=\"math-formual notranslate\">$$ { \\frac {a-b}b = \\frac ab &#8211; 1 = \\frac {a+b}a &#8211; 1 = \\frac ba = \\frac 1{\\varphi} \\quad\\text{donc}\\quad \\frac b{a-b} = \\varphi \\;} $$<\/div><\/center><p>\u524d\u306e\u30d7\u30ed\u30bb\u30b9\u3092\u7e70\u308a\u8fd4\u3057\u3066\u3001\u5de6\u306e\u56f3\u306b\u793a\u3059\u3088\u3046\u306b\u3001\u8fba<i>a<\/i> &#8211; <i>b<\/i>\u306e\u6b63\u65b9\u5f62\u3092\u8fba<i>b<\/i>\u306e\u9ec4\u91d1\u9577\u65b9\u5f62<i>a<\/i> &#8211; <i>b<\/i>\u306b\u7d71\u5408\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u3053\u306e\u65b9\u6cd5\u306f\u7121\u671f\u9650\u306b\u62e1\u5f35\u3067\u304d\u307e\u3059\u3002\u56f3\u306e\u3088\u3046\u306b\u3001\u5404\u6b63\u65b9\u5f62\u306b\u6b63\u65b9\u5f62\u306e 2 \u8fba\u3092\u7aef\u3068\u3059\u308b\u5186\u306e 4 \u5206\u306e 1 \u3092\u63cf\u304f\u3068\u3001\u3089\u305b\u3093\u304c\u5f97\u3089\u308c\u307e\u3059\u3002\u3053\u306e\u30b0\u30e9\u30d5\u306f\u3001\u6975\u65b9\u7a0b\u5f0f\u3092\u4f7f\u7528\u3057\u305f\u9ec4\u91d1\u306e\u87ba\u65cb\u306e\u9069\u5207\u306a<span><a href=\"https:\/\/science-hub.click\/?p=33686\">\u8fd1\u4f3c<\/a><\/span>\u3067\u3059\u3002 <\/p><center><div class=\"math-formual notranslate\">$$ { r (\\theta) = r.\\varphi^{-\\frac{\\theta}{\\pi\/2}}} $$<\/div><\/center><p>\u3053\u306e\u30b9\u30d1\u30a4\u30e9\u30eb\u306f\u3001<span>\u5bfe\u6570\u30b9\u30d1\u30a4\u30e9\u30eb<\/span>\u306e\u7279\u6b8a\u306a\u30b1\u30fc\u30b9\u3067\u3059\u3002\u3053\u306e\u30d5\u30a1\u30df\u30ea\u30fc\u306e\u4ed6\u306e\u87ba\u65cb\u3068\u540c\u69d8\u306b\u3001 <i>A \u304c<\/i>\u87ba\u65cb\u306e\u70b9\u3067\u3042\u308b\u5834\u5408\u3001\u87ba\u65cb\u306e\u4e2d\u5fc3\u3092\u901a\u308b\u7dda\u3068<i>A<\/i>\u306e\u9593\u306e\u89d2\u5ea6\u306f\u3001 <i>A<\/i>\u306b\u304a\u3051\u308b\u87ba\u65cb\u306e\u63a5\u7dda\u3068\u4e00\u5b9a\u306e\u89d2\u5ea6\u3092\u5f62\u6210\u3059\u308b\u3068\u3044\u3046\u7279\u5fb4\u7684\u306a\u6027\u8cea\u304c\u3042\u308a\u307e\u3059\u3002\u3053\u306e\u3088\u3046\u306a\u87ba\u65cb\u306f<b>\u7b49\u89d2\u87ba\u65cb<\/b>\u3068\u547c\u3070\u308c\u307e\u3059\u3002<\/p><p>\u4ed6\u306e\u56f3\u5f62\u3082\u3001<b>\u91d1\u306e\u5375<\/b>\u306e\u3088\u3046\u306b\u9ec4\u91d1\u6bd4\u3092\u4f7f\u7528\u3057\u3066\u63cf\u753b\u3055\u308c\u307e\u3059\u3002<\/p><h3><span>\u4e94\u89d2\u5f62\u3068\u4e94\u8292\u661f<\/span><\/h3><div><div><figure class=\"wp-block-image size-large is-style-default\">\n<img decoding=\"async\" alt=\"\" class=\"aligncenter\" onerror=\"this.style.display=none;\" src=\"https:\/\/img.youtube.com\/vi\/p0O46DlmuEk\/0.jpg\" style=\"width:100%;\"\/><\/figure><div><b>\u56f3 3<\/b> : \u6975\u7aef\u306a\u7406\u7531\u3068\u5e73\u5747\u7684\u306a\u7406\u7531\u306e\u5272\u5408\u304c\u69cb\u7bc9\u3055\u308c\u305f\u3089\u3001\u4e94\u89d2\u5f62\u3092\u63cf\u304f\u306e\u306f\u7c21\u5358\u3067\u3059\u3002<\/div><\/div><\/div><p>\u4e94\u89d2\u5f62\u306f\u3001\u6975\u7406\u3068\u4e2d\u7406\u306e\u6bd4\u7387\u3092\u4f7f\u7528\u3057\u3066\u69cb\u7bc9\u3055\u308c\u307e\u3059\u3002\u5de6\u306e\u56f3\u306b\u793a\u3059\u3001\u76f4\u5f84<i>OP<\/i> <sub>1<\/sub>\u304a\u3088\u3073\u534a\u5f84<i>a<\/i>\u306e\u5186\u3092\u8003\u3048\u3066\u307f\u307e\u3057\u3087\u3046\u3002 <i>b<\/i>\u304c<i>a<\/i>\u3088\u308a\u5c0f\u3055\u3044\u5b9f\u6570\u3067\u3001 <i>a<\/i>\u3068<i>b \u304c<\/i>\u9ec4\u91d1\u6bd4\u3067\u3042\u308b\u5834\u5408\u3001\u76f4\u5f84<i>OP<\/i> <sub>1<\/sub>\u306e\u5186\u3068\u4e2d\u5fc3<i>O<\/i>\u3068\u534a\u5f84\u306e 2 \u3064\u306e\u5186\u306e\u4ea4\u70b9<i>P<\/i> <sub>2<\/sub> \u3001 <i>P<\/i> <sub>3<\/sub> \u3001 <i>P<\/i> <sub>4<\/sub> \u3001\u304a\u3088\u3073<i>P<\/i> <sub>5<\/sub>\u3068\u3057\u307e\u3059\u3002 <i>a<\/i> + <i>b<\/i>\u304a\u3088\u3073<i>b<\/i>\u306e\u5834\u5408\u30015 \u3064\u306e\u70b9<i>Pi<\/i><sub>\u306f<\/sub>\u4e94\u89d2\u5f62\u3092\u5b9a\u7fa9\u3057\u307e\u3059\u3002<\/p><p>\u95a2\u9023\u3059\u308b\u4e94\u8292\u661f\u3001\u3064\u307e\u308a\u4e94\u89d2\u5f62\u306e 5 \u3064\u306e\u5bfe\u89d2\u7dda\u3067\u69cb\u6210\u3055\u308c\u308b\u56f3\u5f62 (\u53f3\u306e\u56f3\u3092\u53c2\u7167) \u306b\u3082\u3001\u6975\u7aef\u306a\u7406\u7531\u3068\u5e73\u5747\u7684\u306a\u7406\u7531\u304c\u8907\u6570\u306e\u5272\u5408\u3067\u542b\u307e\u308c\u3066\u3044\u307e\u3059\u3002\u4e00\u8fba\u306e\u9577\u3055\u304c\u9ec4\u91d1\u6bd4\u3067\u3042\u308b\u4e8c\u7b49\u8fba\u4e09\u89d2\u5f62\u3092\u4f7f\u3063\u3066\u30b7\u30f3\u30d7\u30eb\u306b\u8868\u73fe\u3057\u307e\u3059\u3002\u3053\u306e\u3088\u3046\u306a\u4e09\u89d2\u5f62\u306f<b>\u9ec4\u91d1\u306e\u4e09\u89d2\u5f62<\/b>\u3068\u547c\u3070\u308c\u307e\u3059\u3002 2 \u3064\u306e\u7570\u306a\u308b\u30bf\u30a4\u30d7\u304c\u3042\u308a\u3001\u9ec4\u8272\u306e\u3082\u306e\u306f\u57fa\u672c\u304c<i>a<\/i>\u306b\u6bd4\u4f8b\u3057\u30012 \u3064\u306e\u5074\u9762\u304c<i>b<\/i>\u306b\u6bd4\u4f8b\u3057\u3001\u30aa\u30ec\u30f3\u30b8\u8272\u306e\u3082\u306e\u306f\u57fa\u672c\u304c<i>b<\/i>\u306b\u6bd4\u4f8b\u3057\u30012 \u3064\u306e\u5074\u9762\u304c<i>a<\/i>\u306b\u6bd4\u4f8b\u3057\u307e\u3059\u3002\u6697\u3044\u4e09\u89d2\u5f62\u306f\u540c\u3058<span><a href=\"https:\/\/science-hub.click\/?p=54162\">\u8272<\/a><\/span>\u306e\u660e\u308b\u3044\u4e09\u89d2\u5f62\u306b\u4f3c\u3066\u304a\u308a\u3001\u660e\u6697\u306e\u6bd4\u7387\u306f\u4f9d\u7136\u3068\u3057\u3066\u91d1\u8272\u3067\u3059\u3002<\/p><p>\u9ec4\u8272\u306e\u4e09\u89d2\u5f62\u306e\u89d2\u5ea6\u306f 36\u00b0 (\u5e73\u9762\u89d2\u306e 5 \u5206\u306e 1) \u306e 2 \u3064\u3068\u3001108\u00b0 (\u5e73\u9762\u89d2\u306e 5 \u5206\u306e 3) \u306e 1 \u3064\u3067\u3059\u3002\u3053\u306e\u3088\u3046\u306a\u4e09\u89d2\u5f62\u306f\u3001<b>\u30b7\u30eb\u30d0\u30fc \u30c8\u30e9\u30a4\u30a2\u30f3\u30b0\u30eb<\/b>\u3068\u547c\u3070\u308c\u308b\u3053\u3068\u3082\u3042\u308a\u307e\u3059\u3002\u30aa\u30ec\u30f3\u30b8\u8272\u306e\u4e09\u89d2\u5f62\u306b\u306f\u300172\u00b0\u306e\u89d2\u5ea6\u304c 2 \u3064\u3042\u308a\u3001\u5e73\u9762\u89d2\u5ea6\u306e 5 \u5206\u306e 2 \u3068\u300136\u00b0\u306e\u89d2\u5ea6\u304c 1 \u3064\u3042\u308a\u307e\u3059\u3002\u8fba\u304c\u5e38\u306b<i>a<\/i>\u3068<i>b<\/i>\u3067\u3042\u308b\u91d1\u3068\u9280\u306e\u4e09\u89d2\u5f62\u3092\u4f7f\u7528\u3059\u308b\u3068\u3001\u975e\u5468\u671f\u7684\u306a\u65b9\u6cd5\u3067\u30e6\u30fc\u30af\u30ea\u30c3\u30c9\u5e73\u9762\u3092\u5b8c\u5168\u306b\u30bf\u30a4\u30eb\u5316\u3059\u308b\u3053\u3068\u304c\u53ef\u80fd\u3067\u3059\u3002\u3053\u306e\u3088\u3046\u306a<span>\u30bf\u30a4\u30ea\u30f3\u30b0\u306f<\/span>\u30da\u30f3\u30ed\u30fc\u30ba \u30bf\u30a4\u30ea\u30f3\u30b0\u3068\u547c\u3070\u308c\u307e\u3059\u3002<\/p><div align=\"left\"><div title=\"[\u62e1\u5927\u3059\u308b]\"><div align=\"left\"><p><span><a href=\"https:\/\/science-hub.click\/?p=81733\">\u4e09\u89d2\u6cd5\u3092<\/a><\/span>\u4f7f\u7528\u3059\u308b\u3068\u3001\u6bb5\u843d\u306e\u3055\u307e\u3056\u307e\u306a\u30d7\u30ed\u30d1\u30c6\u30a3\u3092\u8868\u793a\u3067\u304d\u307e\u3059\u3002\u307e\u305f\u3001\u5e7e\u4f55\u5b66\u3092\u4f7f\u7528\u3057\u3066\u3053\u308c\u3089\u306e\u7d50\u679c\u3092\u78ba\u7acb\u3059\u308b\u3053\u3068\u3082\u3067\u304d\u307e\u3059\u3002<\/p><p>\u6700\u521d\u306e\u88dc\u984c\u304c\u3055\u307e\u3056\u307e\u306a\u8a3c\u660e\u306e\u9375\u3068\u306a\u308a\u307e\u3059\u3002 <i>a<\/i>\u3068<i>b<\/i> ( <i>a<\/i> &gt; <i>b)<\/i>\u3092\u3001\u6975\u5024\u3068\u5e73\u5747\u306b\u6bd4\u4f8b\u3057\u305f 2 \u3064\u306e\u9577\u3055\u3068\u3057\u307e\u3059\u3002 <i>ABD \u3092\u3001<\/i> <i>A<\/i>\u3068<i>B \u304c<\/i>\u4e92\u3044\u306b\u8ddd\u96e2<i>a<\/i>\u306b\u4f4d\u7f6e\u3057\u3001 <i>B<\/i>\u3068<i>D \u304c<\/i>\u8ddd\u96e2<i>b<\/i>\u306b\u4f4d\u7f6e\u3059\u308b\u3088\u3046\u306a\u9ec4\u91d1\u306e\u4e09\u89d2\u5f62\u3068\u3057\u307e\u3059\u3002<\/p><div><div><div> <figure class=\"wp-block-image size-large is-style-default\">\n<img decoding=\"async\" alt=\"\" class=\"aligncenter\" onerror=\"this.style.display=none;\" src=\"https:\/\/img.youtube.com\/vi\/2fDe6cnl__E\/0.jpg\" style=\"width:100%;\"\/><\/figure><div><b>\u56f3 4<\/b> : \u91d1\u8272\u306e\u4e09\u89d2\u5f62\u3092\u9280\u8272\u306e\u4e09\u89d2\u5f62\u3068\u3001\u6700\u521d\u306e\u9ec4\u91d1\u6bd4\u306b\u5fdc\u3058\u305f\u91d1\u8272\u306e\u4e09\u89d2\u5f62\u306b\u5206\u5272\u3057\u307e\u3059\u3002<\/div><\/div><\/div><\/div><dl><dd><ul><li> <b><i>C \u3092<\/i>\u7dda\u5206<i>AD<\/i>\u306e\u70b9\u3068\u3057\u3001\u8ddd\u96e2<i>AC<\/i>\u304c b \u306b\u7b49\u3057\u304f\u306a\u308b\u3088\u3046\u306b\u3059\u308b\u3068\u3001\u4e09\u89d2\u5f62 BCD \u306f\u91d1\u8272\u306e\u4e09\u89d2\u5f62\u3001\u4e09\u89d2\u5f62<i>ABC \u306f<\/i>\u9280\u8272\u306e\u4e09\u89d2\u5f62\u306b\u306a\u308a\u307e\u3059\u3002<\/b><\/li><\/ul><\/dd><\/dl><p>\u3053\u306e\u547d\u984c\u306f\u53f3\u56f3\u306b\u5bfe\u5fdc\u3057\u307e\u3059\u3002\u69cb\u9020\u4e0a\u3001\u8ddd\u96e2<i>AB<\/i>\u3068<i>AD \u306f<\/i><i>a<\/i>\u306b\u7b49\u3057\u304f\u306a\u308a\u307e\u3059\u3002 <i>A<\/i>\u306e<i>b<\/i>\u306b\u4f4d\u7f6e\u3059\u308b\u7dda\u5206<i>AB<\/i>\u306e\u70b9<i>E \u3092<\/i>\u8003\u3048\u3001\u4e09\u89d2\u5f62<i>AEC<\/i> (\u7dd1\u8272) \u304c<i>BCD<\/i> (\u9ec4\u8272) \u306b\u7b49\u3057\u3044\u3053\u3068\u3092\u793a\u3057\u307e\u3059\u3002\u89d2\u5ea6\u3068 2 \u3064\u306e\u7b49\u3057\u3044\u8fba\u304c\u3042\u308b\u3053\u3068\u3092\u793a\u3059\u3060\u3051\u3067\u5341\u5206\u3067\u3059\u3002 2 \u3064\u306e\u4e09\u89d2\u5f62<i>AEC<\/i>\u3068<i>ABD<\/i>\u306f\u4f3c\u3066\u304a\u308a (\u4e21\u65b9\u306e\u4e8c\u7b49\u8fba\u304c\u540c\u3058\u9802\u70b9\u3092\u6301\u3064\u305f\u3081)\u3001\u6bd4\u7387\u306f<i>a<\/i> \/ <i>b<\/i>\u3067\u3059\u3002 <i>B<\/i>\u3068<i>D<\/i>\u306e\u9593\u306e\u8ddd\u96e2\u306f<i>b<\/i>\u306b\u7b49\u3057\u3044\u305f\u3081\u3001 <i>C<\/i>\u3068<i>E<\/i>\u306e\u9593\u306e\u8ddd\u96e2\u306f<i>a<\/i> \u2212 <i>b<\/i>\u306b\u7b49\u3057\u304f\u306a\u308a\u307e\u3059 ( <i>b<\/i> \/( <i>a<\/i> \u2212 <i>b<\/i> ) = <i>a<\/i> \/ <i>b<\/i>\u3067\u3042\u308b\u305f\u3081)\u3002\u3053\u306e\u8ddd\u96e2\u306f\u3001 <i>C<\/i>\u3068<i>D \u306e<\/i>\u9593\u306e\u8ddd\u96e2\u3068\u540c\u3058\u306b\u306a\u308a\u307e\u3059\u3002\u4e09\u89d2\u5f62<i>ACE<\/i>\u3068<i>ADB<\/i>\u306e\u985e\u4f3c\u3057\u305f\u6027\u8cea\u306f\u3001\u89d2\u5ea6<i>ACE<\/i>\u304c<i>ADB<\/i>\u306b\u7b49\u3057\u3044\u3053\u3068\u3092\u793a\u3057\u3066\u3044\u307e\u3059\u3002\u6700\u7d42\u7684\u306b\u3001\u8ddd\u96e2<i>DB \u306f<\/i><i>AC<\/i>\u306e\u8ddd\u96e2\u306b\u7b49\u3057\u304f\u306a\u308a\u307e\u3059\u3002 2 \u3064\u306e\u4e09\u89d2\u5f62\u306f 2 \u3064\u306e\u7b49\u3057\u3044\u8fba\u3068\u89d2\u5ea6\u3092\u6301\u3061\u3001\u540c\u4e00\u3067\u3059\u3002 <i>ACE<\/i>\u4e09\u89d2\u5f62\u306f\u9ec4\u91d1\u4e09\u89d2\u5f62<i>ADB<\/i>\u306b\u4f3c\u3066\u304a\u308a\u3001\u4e09\u89d2\u5f62<i>BDC<\/i>\u3068\u540c\u69d8\u306b\u9ec4\u91d1\u4e09\u89d2\u5f62\u3067\u3082\u3042\u308a\u307e\u3059\u3002\u6700\u521d\u306e\u4e09\u89d2\u5f62\u3068<i>a<\/i> \/ <i>b<\/i>\u306b\u6bd4\u4f8b\u3057\u307e\u3059\u3002<\/p><p> <i>ACB<\/i>\u30c8\u30e9\u30a4\u30a2\u30f3\u30b0\u30eb\u304c\u5b9f\u969b\u306b\u9280\u3067\u3042\u308b\u304b\u3069\u3046\u304b\u306f\u307e\u3060\u8a3c\u660e\u3055\u308c\u3066\u3044\u307e\u305b\u3093\u3002 <i>B<\/i>\u304b\u3089<i>C<\/i>\u307e\u3067\u306e\u8ddd\u96e2\u304c<i>b<\/i>\u306b\u7b49\u3057\u3044\u3053\u3068\u3092\u8a3c\u660e\u3067\u304d\u308c\u3070\u5341\u5206\u3067\u3059\u3002\u3053\u3053\u3067\u3001\u4e09\u89d2\u5f62<i>BDC \u306f<\/i>\u9ec4\u91d1\u306e\u4e09\u89d2\u5f62\u3067\u3042\u308b\u305f\u3081\u3001\u8ddd\u96e2<i>BC \u306f<\/i><i>BD<\/i>\u306e\u8ddd\u96e2\u3001\u3057\u305f\u304c\u3063\u3066<i>b<\/i>\u306b\u7b49\u3057\u3044\u3053\u3068\u304c\u308f\u304b\u308a\u3001\u30c7\u30e2\u30f3\u30b9\u30c8\u30ec\u30fc\u30b7\u30e7\u30f3\u306f\u5b8c\u4e86\u3067\u3059\u3002<\/p><dl><dd><ul><li><b>\u9ec4\u91d1\u306e\u4e09\u89d2\u5f62\u306f 72\u00b0 \u306e 2 \u3064\u306e\u89d2\u5ea6\u3068 36\u00b0 \u306e 1 \u3064\u3067\u69cb\u6210\u3055\u308c\u3001\u9280\u306e\u4e09\u89d2\u5f62\u306b\u306f 36\u00b0 \u306e 2 \u3064\u306e\u89d2\u5ea6\u3068 108\u00b0 \u306e 1 \u3064\u304c\u542b\u307e\u308c\u307e\u3059\u3002<\/b><\/li><\/ul><\/dd><\/dl><p>\u524d\u306e\u88dc\u984c\u306f\u3001\u4e09\u89d2\u5f62<i>ABC<\/i>\u304c\u9802\u70b9 C \u3092\u6301\u3064\u4e8c\u7b49\u8fba\u3067\u3042\u308b\u3053\u3068\u3092\u793a\u3057\u3066\u3044\u307e\u3059\u3002\u3057\u305f\u304c\u3063\u3066\u3001\u89d2\u5ea6<i>DCB \u306f<\/i>\u89d2\u5ea6<i>CAB \u306e<\/i>2 \u500d\u306b\u7b49\u3057\u304f\u306a\u308a\u307e\u3059\u3002\u3064\u307e\u308a\u3001\u53f3\u5074\u306e\u8868\u8a18\u3067\u306f \u03bc = 2\u03b8 \u3068\u306a\u308a\u307e\u3059\u3002\u4e00\u65b9\u3001\u4e09\u89d2\u5f62<i>BCD<\/i>\u3082\u9ec4\u91d1\u4e09\u89d2\u5f62\u306a\u306e\u3067\u9802\u70b9B\u3068\u4e8c\u7b49\u8fba\u3067\u3042\u308a\u3001\u305d\u306e\u89d2\u5ea6\u306f\u03b8\u30012\u03b8\u30012\u03b8\u3067\u3059\u3002\u89d2\u5ea6\u306e\u5408\u8a08\u304c 180\u00b0\u306b\u7b49\u3057\u3044\u5834\u5408\u30015\u03b8=180\u00b0\u3001\u3064\u307e\u308a \u03b8=36\u00b0 \u306b\u306a\u308a\u307e\u3059\u3002\u305d\u306e\u5f8c\u3001\u03bc = 2\u03b8 = 72\u00b0\u3068\u306a\u308a\u3001\u03b7 = 180 &#8211; \u03bc = 108\u00b0\u3068\u306a\u308a\u307e\u3059\u3002<\/p><p> \u03b8 \u306f\u534a\u56de\u8ee2\u306e 5 \u5206\u306e 1\u3001\u03bc \u306f 5 \u5206\u306e 2\u3001\u03b7 \u306f 5 \u5206\u306e 3 \u306b\u7b49\u3057\u3044\u3053\u3068\u306b\u6ce8\u610f\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p><dl><dd><ul><li><b>\u56f3 3 \u306e\u70b9<i>P<\/i> <sub>1<\/sub> \u3001 <i>P<\/i> <sub>2<\/sub> \u3001 <i>P<\/i> <sub>3<\/sub> \u3001 <i>P<\/i> <sub>4<\/sub>\u304a\u3088\u3073<i>P<\/i> <sub>5 \u306f<\/sub>\u4e94\u89d2\u5f62\u3092\u5f62\u6210\u3057\u307e\u3059\u3002<\/b><\/li><\/ul><\/dd><\/dl><p>\u3053\u3053\u3067\u4f7f\u7528\u3055\u308c\u308b\u65b9\u6cd5\u306f\u30012 \u3064\u306e\u9802\u70b9\u304c\u9023\u7d9a\u3057\u3066\u3044\u308b\u5834\u5408\u3001\u5186\u306e\u4e2d\u5fc3\u3068\u306e\u89d2\u5ea6\u304c 72\u00b0 \u3067\u3042\u308b\u3053\u3068\u3092\u793a\u3059\u3053\u3068\u304b\u3089\u69cb\u6210\u3055\u308c\u307e\u3059\u3002<\/p><dl><dd><dl><dd><i>\u89d2\u5ea6 P<\/i> <sub>4<\/sub> <i>AP<\/i> <sub>5<\/sub><i>\u306f 72\u00b0 \u3067\u3059\u3002<\/i><\/dd><\/dl><\/dd><\/dl><p>\u3053\u306e\u6700\u521d\u306e\u30b9\u30c6\u30c3\u30d7\u306f\u3001\u70b9<i>P<\/i> <sub>4<\/sub>\u304a\u3088\u3073<i>P<\/i> <sub>5 \u304c<\/sub>\u3001\u4e2d\u5fc3<i>O<\/i>\u304a\u3088\u3073\u534a\u5f84<i>b \u306e<\/i>\u5186\u3068\u3001\u4e2d\u5fc3<i>A<\/i>\u304a\u3088\u3073\u534a\u5f84<i>a<\/i>\u306e\u5186\u306e\u4ea4\u70b9\u3068\u3057\u3066\u5b9a\u7fa9\u3055\u308c\u308b\u3068\u3044\u3046\u4e8b\u5b9f\u306e\u7d50\u679c\u3067\u3059\u3002\u4e09\u89d2\u5f62<i>P<\/i> <sub>4<\/sub> <i>AO<\/i>\u3068<i>OAP<\/i> <sub>5<\/sub>\u306f\u91d1\u3001\u89d2\u5ea6<i>P<\/i> <sub>4<\/sub> <i>AO<\/i>\u3068<i>OAP<\/i> <sub>5<\/sub>\u306f\u305d\u308c\u305e\u308c 36\u00b0 \u3067\u3042\u308b\u3068\u7d50\u8ad6\u4ed8\u3051\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p><dl><dd><dl><dd><i>\u89d2\u5ea6 P<\/i> <sub>4<\/sub> <i>AP<\/i> <sub>2<\/sub><i>\u306f 72\u00b0 \u3067\u3059\u3002<\/i><\/dd><\/dl><\/dd><\/dl><p> <i>O<\/i>\u3068<i>P<\/i> <sub>2<\/sub>\u306e\u9593\u306e\u8ddd\u96e2\u306f<i>a<\/i> + <i>b<\/i>\u306b\u7b49\u3057\u304f\u3001 <i>O<\/i>\u3068<i>A \u306e<\/i>\u9593\u306e\u8ddd\u96e2\u3001\u304a\u3088\u3073<i>A<\/i>\u3068<i>P<\/i> <sub>2<\/sub>\u306e\u9593\u306e\u8ddd\u96e2\u3082<i>a<\/i>\u306b\u7b49\u3057\u3044\u3002\u3053\u308c\u304b\u3089\u3001\u4e09\u89d2\u5f62<i>OAP<\/i> <sub>2<\/sub>\u306f\u9280\u8272\u306e\u4e09\u89d2\u5f62\u3067\u3042\u308b\u3068\u63a8\u5b9a\u3055\u308c\u307e\u3059\u3002\u3057\u305f\u304c\u3063\u3066\u3001\u89d2\u5ea6<i>\uff2f\uff21\uff30\uff12<\/i><sub>\u306f<\/sub>\uff11\uff10\uff18\u00b0\u3067\u3042\u308b\u3002\u89d2\u5ea6<i>P<\/i> <sub>4<\/sub> <i>AO \u306f<\/i>36\u00b0 \u3067\u3042\u308b\u305f\u3081\u3001\u5dee\u306b\u3088\u308a\u3001\u89d2\u5ea6<i>P<\/i> <sub>4<\/sub> <i>AP<\/i> <sub>2<\/sub>\u306f 108\u00b0 &#8211; 36\u00b0 \u307e\u305f\u306f 72\u00b0 \u3067\u3042\u308b\u3053\u3068\u304c\u308f\u304b\u308a\u307e\u3059\u3002<\/p><dl><dd><dl><dd><i>\u89d2\u5ea6 P<\/i> <sub>2<\/sub> <i>AP<\/i> <sub>0<\/sub><i>\u306f 72\u00b0 \u3067\u3059\u3002<\/i><\/dd><\/dl><\/dd><\/dl><p>\u89d2\u5ea6<i>\uff2f\uff21\uff30<\/i> <sub>\uff12<\/sub>\u306f\uff11\uff10\uff18\u00b0\u3067\u3042\u308a\u3001\u89d2\u5ea6<i>\uff2f\uff21\uff30<\/i> <sub>\uff10<\/sub>\u306f\u5e73\u5766\u3067\u3042\u308b\u305f\u3081\u3001\u89d2\u5ea6<i>\uff30<\/i> <sub>\uff12<\/sub> <i>\uff21\uff30<\/i> <sub>\uff10<\/sub>\u306f\uff11\uff18\uff10\u00b0\u301c\uff11\uff10\uff18\u00b0\u3001\u3059\u306a\u308f\u3061\uff17\uff12\u00b0\u306b\u7b49\u3057\u3044\u3002<\/p><dl><dd><dl><dd><i>\u7d50\u8ad6 \uff1a<\/i><\/dd><\/dl><\/dd><\/dl><p>\u89d2\u5ea6<i>P<\/i> <sub>5<\/sub> <i>AP<\/i> <sub>3<\/sub>\u3068<i>P<\/i> <sub>3<\/sub> <i>AP<\/i> <sub>0 \u3092<\/sub>\u6e2c\u5b9a\u3059\u308b\u3053\u3068\u304c\u307e\u3060\u6b8b\u3063\u3066\u3044\u307e\u3059\u3002\u3053\u308c\u3092\u884c\u3046\u306b\u306f\u3001\u7dda<i>OA \u304c<\/i>\u4e94\u89d2\u5f62\u306e<span><a href=\"https:\/\/science-hub.click\/?p=30620\">\u5bfe\u79f0<\/a><\/span>\u8ef8\u3067\u3042\u308a\u3001\u305d\u306e\u7d50\u679c\u3001\u89d2\u5ea6<i>P<\/i> <sub>5<\/sub> <i>AP<\/i> <sub>3<\/sub>\u304c<i>P<\/i> <sub>4<\/sub> <i>AP<\/i> <sub>2<\/sub>\u306b\u7b49\u3057\u304f\u3001 <i>P<\/i> <sub>3<\/sub> <i>AP<\/i> <sub>0<\/sub>\u304c<i>P<\/i> <sub>1<\/sub> <i>AP<\/i> <sub>0<\/sub>\u306b\u7b49\u3057\u3044\u3053\u3068\u306b\u6ce8\u610f\u3059\u308b\u3060\u3051\u3067\u5341\u5206\u3067\u3059\u3002\u30c7\u30e2\u30f3\u30b9\u30c8\u30ec\u30fc\u30b7\u30e7\u30f3\u3002<\/p><\/div><\/div><\/div><h3><span>\u4e09\u89d2\u6cd5<\/span><\/h3><p>\u9280\u3068\u91d1\u306e\u4e09\u89d2\u5f62\u306e\u6e2c\u5b9a\u5024\u3092\u5206\u6790\u3059\u308b\u3068\u3001\u4e94\u89d2\u5f62\u306b\u95a2\u9023\u3059\u308b\u4e09\u89d2\u95a2\u6570\u306e\u5024\u3092\u6c7a\u5b9a\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u5e95\u8fba\u304c \u03c6 \u3067\u3001\u96a3\u63a5\u3059\u308b\u8fba\u306e\u9577\u3055\u304c 1 \u3067\u3042\u308b\u9280\u8272\u306e\u4e09\u89d2\u5f62\u3092\u8003\u3048\u307e\u3059\u3002\u53f3\u306e\u56f3\u306e\u3088\u3046\u306b\u3001\u3053\u306e\u4e09\u89d2\u5f62\u3092\u4e2d\u592e\u3067<span><a href=\"https:\/\/science-hub.click\/?p=1040\">\u5207\u65ad\u3059\u308b\u3068<\/a><\/span>\u3001\u9577\u3055 1 \u306e<span>\u659c\u8fba<\/span>\u306e\u76f4\u89d2\u4e09\u89d2\u5f62\u306b\u306a\u308a\u307e\u3059\u3002\u305d\u306e\u5e95\u8fba\u306e\u9577\u3055\u306f \u03c6 \/2 \u3067\u3059\u3002\u305d\u308c\u306f\u9280\u8272\u306e\u9577\u65b9\u5f62\u306e\u5e95\u8fba\u306e\u534a\u5206\u306b\u5bfe\u5fdc\u3057\u307e\u3059\u3002\u3053\u308c\u304b\u3089\u300136\u00b0\u306e<span><a href=\"https:\/\/science-hub.click\/?p=18862\">\u4f59\u5f26<\/a><\/span>\u306f \u03c6\/2 \u306b\u7b49\u3057\u3044\u3068\u63a8\u6e2c\u3057\u307e\u3059\u3002\u540c\u69d8\u306e\u63a8\u8ad6\u304c\u9ec4\u91d1\u306e\u4e09\u89d2\u5f62\u306b\u3082\u5f53\u3066\u306f\u307e\u308a\u307e\u3059\u3002\u8fba\u306f\u5e38\u306b\u9577\u3055 1 \u3067\u3042\u308a\u3001\u5e95\u8fba\u306f\u9ec4\u91d1\u6bd4\u3067\u3042\u308b\u305f\u3081\u3001\u9577\u3055 \u03c6 &#8211; 1 \u306b\u306a\u308a\u307e\u3059\u3002\u3053\u308c\u304b\u3089\u300172\u00b0\u306e\u4f59\u5f26\u306f (\u03c6 &#8211; 1)\/2 \u306b\u7b49\u3057\u3044\u3068\u63a8\u5b9a\u3055\u308c\u307e\u3059\u3002\u3053\u308c\u3089\u306e\u5024\u3068\u3055\u307e\u3056\u307e\u306a\u5f0f\u304b\u3089\u3001\u89d2\u5ea6 36\u00b0 \u306e\u500d\u6570\u304a\u3088\u3073\u534a\u5206\u306e\u4e09\u89d2\u95a2\u6570\u306b\u3088\u3063\u3066\u753b\u50cf\u3092\u8a08\u7b97\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p><p>\u4e94\u89d2\u5f62\u306e\u3055\u307e\u3056\u307e\u306a\u7279\u6027\u5024\u3092\u6c7a\u5b9a\u3059\u308b\u3082\u3046 1 \u3064\u306e\u65b9\u6cd5\u306f\u3001<span><a href=\"https:\/\/science-hub.click\/?p=46336\">\u8907\u7d20\u5e73\u9762<\/a><\/span>\u3092\u4f7f\u7528\u3059\u308b\u3053\u3068\u3067\u3059\u3002<span><a href=\"https:\/\/science-hub.click\/?p=16478\">\u9802\u70b9<\/a><\/span>\u306f<i>\u5186\u5206<\/i><i>\u591a\u9805\u5f0f<\/i><span><a href=\"https:\/\/science-hub.click\/?p=31638\">1<\/a><\/span>\u306e<sup>\u6839<\/sup><sup>\u3067\u3059<\/sup>\u3002 <i>p<\/i>\u304c\u7d20\u6570\u306e\u5834\u5408\u3001 <i>p \u304c<\/i><span><a href=\"https:\/\/science-hub.click\/?p=2030\">\u30d5\u30a7\u30eb\u30de\u30fc\u6570<\/a><\/span>\u3067\u3042\u308b\u5834\u5408\u306b\u9650\u308a\u3001\u5b9a\u898f\u3068\u30b3\u30f3\u30d1\u30b9\u3092\u4f7f\u3063\u3066<i>p<\/i>\u8fba\u3092\u6301\u3064\u6b63<span><a href=\"https:\/\/science-hub.click\/?p=35323\">\u591a\u9805\u5f0f<\/a><\/span><span><a href=\"https:\/\/science-hub.click\/?p=30574\">\u3092\u4f5c\u6210<\/a><\/span>\u3067\u304d\u307e\u3059\u3002\u3053\u306e\u5834\u5408\u3001\u5186\u5206\u591a\u9805\u5f0f\u306e\u6839\u306e\u62bd\u51fa\u306f\u30012 \u6b21\u65b9\u7a0b\u5f0f\u306e\u5206\u89e3\u3092\u4f7f\u7528\u3057\u3066\u5f97\u3089\u308c\u307e\u3059\u3002\u3053\u306e\u30b1\u30fc\u30b9\u306f\u3001\u5186\u5206\u591a\u9805\u5f0f\u306e\u8a18\u4e8b\u3067\u6271\u308f\u308c\u307e\u3059\u3002 <\/p><div align=\"left\"><div title=\"[\u62e1\u5927\u3059\u308b]\"><div align=\"left\"><dl><dd><div class=\"math-formual notranslate\">$$ {\\cos(144^\\circ)=  -{\\varphi \\over 2},\\quad \\sin(36^\\circ) ={\\sqrt{3-\\varphi}\\over 2},\\quad \\sin(72^\\circ)= {\\sqrt{2+\\varphi} \\over 2}} $$<\/div><\/dd><\/dl><p>\u534a\u89d2\u306e\u516c\u5f0f\u3092\u9069\u7528\u3059\u308b\u3068\u3001\u6b21\u306e\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002 <\/p><dl><dd><div class=\"math-formual notranslate\">$$ {\\cos\\left(\\frac{\\theta}{2}\\right) = \\frac 12 \\sqrt{2 + 2\\cos(\\theta)}} $$<\/div> ;<\/dd><\/dl><p>\u500d\u89d2\u3068\u4f59\u89d2\u306e\u516c\u5f0f\u3068\u540c\u69d8\u306b\u30019\u00b0\u306e\u500d\u6570\u3067\u3042\u308b\u3059\u3079\u3066\u306e\u89d2\u5ea6\u306e\u4f59\u5f26\u3092\u6c42\u3081\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u3044\u304f\u3064\u304b\u306f\u9ec4\u91d1\u6bd4\u3092\u4f7f\u7528\u3057\u3066\u8868\u73fe\u3055\u308c\u307e\u3059\u3002 <\/p><dl><dd><div class=\"math-formual notranslate\">$$ {\\cos\\,(\\,9^\\circ) \\, = \\frac 12 \\sqrt{2+\\sqrt{ 2+\\varphi }},\\quad \\cos\\,(18^\\circ)= \\frac 12  \\sqrt{ 2+\\varphi },\\quad \\cos\\,(27^\\circ)= \\frac 12 \\sqrt{2+  \\sqrt{ 3-\\varphi }},\\quad \\cos\\,(54^\\circ)= \\frac 12 \\sqrt{ 3-\\varphi }} $$<\/div><\/dd><dd><div class=\"math-formual notranslate\">$$ {\\cos\\,(63^\\circ)= \\frac 12 \\sqrt{2 &#8211; \\sqrt{ 3-\\varphi }},\\quad \\cos\\,(81^\\circ)= \\frac 12 \\sqrt{2 &#8211; \\sqrt{ 2+\\varphi }}} $$<\/div><\/dd><\/dl><p>\u5f62\u72b6\u306e\u89d2\u5ea6\u306e\u4f59\u5f26\u3092\u6c7a\u5b9a\u3059\u308b\u3053\u3068\u3082\u3067\u304d\u307e\u3059\u3002 <div class=\"math-formual notranslate\">$$ {\\frac{9^\\circ}{2^n}} $$<\/div>\u89d2\u5ea6\u306e\u534a\u5206\u306e\u4f59\u5f26\u306e\u516c\u5f0f\u3092\u9069\u7528\u3059\u308b\u3068\u3001\u6b21\u306e\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002 <\/p><dl><dd><div class=\"math-formual notranslate\">$$ {\\cos\\,(9^\\circ)  = \\frac 12 \\sqrt{2+\\sqrt{ 2+\\varphi }},\\quad \\cos\\left(\\frac 92 ^\\circ \\right) =\\frac 12 \\sqrt{2+\\sqrt{ 2+\\sqrt{ 2+\\varphi }}},\\quad \\cos\\left(\\frac 94 ^\\circ \\right) = \\frac 12 \\sqrt{2+\\sqrt{ 2+\\sqrt{ 2+\\sqrt{ 2+\\varphi }} }}} $$<\/div><\/dd><\/dl><p>\u4e00\u822c\u7684\u306b\uff1a <\/p><dl><dd><div class=\"math-formual notranslate\">$$ {\\cos\\left(\\frac{9^\\circ}{2^{n+2}}\\right) = \\frac 12 \\sqrt{2+\\sqrt{ 2+\\cdots \\mbox{n racines gigognes} \\cdots \\sqrt{ 2+\\sqrt{ 2+\\varphi }} }}\\, \\quad(n \\ge 0)} $$<\/div><\/dd><\/dl><\/div><\/div><\/div><\/div><h2 class=\"ref_link\">\u53c2\u8003\u8cc7\u6599<\/h2><ol><li><a class=\"notranslate\" href=\"https:\/\/als.wikipedia.org\/wiki\/Goldener_Schnitt\">Goldener Schnitt \u2013 al\u00e9manique<\/a><\/li><li> <a class=\"notranslate\" href=\"https:\/\/ar.wikipedia.org\/wiki\/%D9%86%D8%B3%D8%A8%D8%A9_%D8%B0%D9%87%D8%A8%D9%8A%D8%A9\">\u0646\u0633\u0628\u0629 \u0630\u0647\u0628\u064a\u0629 \u2013 arabe<\/a><\/li><li> <a class=\"notranslate\" href=\"https:\/\/arz.wikipedia.org\/wiki\/%D8%A7%D9%84%D9%86%D8%B3%D8%A8%D9%87_%D8%A7%D9%84%D8%AF%D9%87%D8%A8%D9%8A%D9%87\">\u0627\u0644\u0646\u0633\u0628\u0647 \u0627\u0644\u062f\u0647\u0628\u064a\u0647 \u2013 arabe \u00e9gyptien<\/a><\/li><li> <a class=\"notranslate\" href=\"https:\/\/ast.wikipedia.org\/wiki\/N%C3%BAmberu_aureu\">N\u00famberu aureu \u2013 asturien<\/a><\/li><li> <a class=\"notranslate\" href=\"https:\/\/az.wikipedia.org\/wiki\/Q%C4%B1z%C4%B1l_b%C3%B6lg%C3%BC\">Q\u0131z\u0131l b\u00f6lg\u00fc \u2013 azerba\u00efdjanais<\/a><\/li><li> <a class=\"notranslate\" href=\"https:\/\/ba.wikipedia.org\/wiki\/%D0%90%D0%BB%D1%82%D1%8B%D0%BD_%D0%BA%D0%B8%D2%AB%D0%B5%D0%BB%D0%B5%D1%88\">\u0410\u043b\u0442\u044b\u043d \u043a\u0438\u04ab\u0435\u043b\u0435\u0448 \u2013 bachkir<\/a><\/li><\/ol><\/div>\n<div class=\"feature-video\">\n <h2>\n  \u9ec4\u91d1\u6bd4\u306b\u3064\u3044\u3066\u8a73\u3057\u304f\u89e3\u8aac\u30fb\u95a2\u9023\u52d5\u753b\n <\/h2>\n <div class=\"video-item\">\n  \n  <figure class=\"wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\">\n   <div class=\"wp-block-embed__wrapper\">\n    <iframe loading=\"lazy\" title=\"\u3010\u3086\u3063\u304f\u308a\u89e3\u8aac\u3011\u9ec4\u91d1\u6bd4\u306b\u3064\u3044\u3066\u3000#Shorts\" width=\"500\" height=\"281\" src=\"https:\/\/www.youtube.com\/embed\/XtNAyzySJi0?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe>\n   <\/div>\n  <\/figure>\n  \n <\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>\u5c0e\u5165 a\u3068b\u306b\u3088\u3063\u3066\u5b9a\u7fa9\u3055\u308c\u308b\u6bd4\u7387\u306f\u3001 a\u304cb\u306b\u5bfe\u3057\u3066\u3001 a + b\u304ca &#8211; \u3067\u3042\u308b\u5834\u5408\u3001\u307e\u305f\u306f (a+b)\/a = a\/b \u306e\u5834\u5408\u306b\u6975\u7aef\u3067\u5e73\u5747\u7684\u3067\u3042\u308b\u3068\u8a00\u308f\u308c\u307e\u3059\u3002\u6bd4\u7387a \/ b \u306f\u9ec4\u91d1\u6bd4\u3068\u7b49\u3057\u304f\u306a\u308a\u307e\u3059\u3002 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":56210,"comment_status":"","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"fifu_image_url":"https:\/\/img.youtube.com\/vi\/XtNAyzySJi0\/0.jpg","fifu_image_alt":"\u9ec4\u91d1\u6bd4\u306b\u3064\u3044\u3066\u8a73\u3057\u304f\u89e3\u8aac","footnotes":""},"categories":[5],"tags":[53769,11,13,10,14,12,8,1460,16,15,9],"class_list":["post-56208","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-dictionary","tag-abudefduf","tag-techniques","tag-technologie","tag-actualite","tag-news","tag-dossier","tag-definition","tag-nombre","tag-sciences","tag-article","tag-explications"],"_links":{"self":[{"href":"https:\/\/science-hub.click\/index.php?rest_route=\/wp\/v2\/posts\/56208"}],"collection":[{"href":"https:\/\/science-hub.click\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/science-hub.click\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/science-hub.click\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/science-hub.click\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=56208"}],"version-history":[{"count":0,"href":"https:\/\/science-hub.click\/index.php?rest_route=\/wp\/v2\/posts\/56208\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/science-hub.click\/index.php?rest_route=\/wp\/v2\/media\/56210"}],"wp:attachment":[{"href":"https:\/\/science-hub.click\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=56208"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/science-hub.click\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=56208"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/science-hub.click\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=56208"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}