{"id":2502,"date":"2020-11-24T16:06:36","date_gmt":"2020-11-24T07:06:36","guid":{"rendered":"https:\/\/hatsudy.com\/jp\/?p=2502"},"modified":"2022-07-20T15:09:21","modified_gmt":"2022-07-20T06:09:21","slug":"root2","status":"publish","type":"post","link":"https:\/\/hatsudy.com\/jp\/root2.html","title":{"rendered":"\u5e73\u65b9\u6839\u306e\u639b\u3051\u7b97\u30fb\u5272\u308a\u7b97\uff1a\u30eb\u30fc\u30c8\u8a08\u7b97\u3068\u7d20\u56e0\u6570\u5206\u89e3\u306e\u3084\u308a\u65b9"},"content":{"rendered":"\n<p>\u5e73\u65b9\u6839\u3067\u306f\u639b\u3051\u7b97\u3068\u5272\u308a\u7b97\u3092\u5b66\u3073\u307e\u3059\u3002\u4e00\u822c\u7684\u306b\u6570\u5b66\u3067\u306f\u3001\u6700\u521d\u306b\u8db3\u3057\u7b97\u3068\u5f15\u304d\u7b97\u3092\u5b66\u3073\u307e\u3059\u3002\u305f\u3060\u5e73\u65b9\u6839\u306b\u3064\u3044\u3066\u306f\u3001\u639b\u3051\u7b97\u3068\u5272\u308a\u7b97\u306e\u307b\u3046\u304c\u7c21\u5358\u3067\u3059\u3002\u6839\u53f7\uff08\u30eb\u30fc\u30c8\uff09\u306e\u6570\u5b57\u3092\u305d\u306e\u307e\u307e\u639b\u3051\u7b97\u3059\u308c\u3070\u3044\u3044\u304b\u3089\u3067\u3059\u3002<\/p>\n<p>\u305f\u3060\u3001\u5e73\u65b9\u6839\u306e\u639b\u3051\u7b97\u306b\u306f\u30eb\u30fc\u30eb\u304c\u3042\u308a\u307e\u3059\u3002\u307e\u305f\u3001\u306a\u305c\u30eb\u30fc\u30c8\u540c\u58eb\u306e\u639b\u3051\u7b97\u3092\u3057\u3066\u3082\u3044\u3044\u306e\u304b\u7406\u89e3\u3057\u3066\u3044\u308b\u4eba\u306f\u5c11\u306a\u3044\u3067\u3059\u3002\u5e73\u65b9\u6839\u306e\u639b\u3051\u7b97\u3068\u5272\u308a\u7b97\u306b\u3064\u3044\u3066\u3001\u306a\u305c\u305d\u3046\u306a\u308b\u306e\u304b\u7406\u7531\u3092\u542b\u3081\u3066\u5b66\u3070\u306a\u3051\u308c\u3070\u3044\u3051\u307e\u305b\u3093\u3002<\/p>\n<p>\u307e\u305f\u5e73\u65b9\u6839\u306a\u3089\u3067\u306f\u306e\u8a08\u7b97\u65b9\u6cd5\u304c\u5b58\u5728\u3057\u307e\u3059\u3002\u305d\u308c\u304c\u7d20\u56e0\u6570\u5206\u89e3\u3067\u3059\u3002\u7d20\u56e0\u6570\u5206\u89e3\u3092\u3059\u308b\u3053\u3068\u3067\u8a08\u7b97\u304c\u7c21\u5358\u306b\u306a\u308a\u3001\u6b63\u3057\u3044\u7b54\u3048\u3092\u51fa\u3059\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u5e73\u65b9\u6839\u306e\u639b\u3051\u7b97\u3068\u5272\u308a\u7b97\u3067\u306f\u3001\u540c\u6642\u306b\u7d20\u56e0\u6570\u5206\u89e3\u3092\u5b66\u3070\u306a\u3051\u308c\u3070\u3044\u3051\u307e\u305b\u3093\u3002<\/p>\n<p>\u30eb\u30fc\u30c8\u8a08\u7b97\u306e\u639b\u3051\u7b97\u3067\u306f\u3001\u65b0\u305f\u306a\u6982\u5ff5\u3092\u5b66\u3076\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u3069\u306e\u3088\u3046\u306b\u5e73\u65b9\u6839\u306e\u639b\u3051\u7b97\u30fb\u5272\u308a\u7b97\u3092\u3059\u308c\u3070\u3044\u3044\u306e\u304b\u89e3\u8aac\u3057\u3066\u3044\u304d\u307e\u3059\u3002<\/p>\n<h2>\u5e73\u65b9\u6839\u306e\u639b\u3051\u7b97\u30fb\u5272\u308a\u7b97\u306e\u65b9\u6cd5<\/h2>\n<p>\u5e73\u65b9\u6839\u3067\u306f\u524d\u8ff0\u306e\u901a\u308a\u3001\u8db3\u3057\u7b97\u3068\u5f15\u304d\u7b97\u306e\u524d\u306b\u639b\u3051\u7b97\u30fb\u5272\u308a\u7b97\u3092\u5b66\u3073\u307e\u3059\u3002\u306a\u305c\u3001\u5e73\u65b9\u6839\u3067\u306f\u639b\u3051\u7b97\u3092\u5148\u306b\u5b66\u3076\u306e\u3067\u3057\u3087\u3046\u304b\u3002\u305d\u308c\u306f\u3001\u5e73\u65b9\u6839\u540c\u58eb\u306e\u639b\u3051\u7b97\u306f\u3084\u308a\u65b9\u304c\u7c21\u5358\u3060\u304b\u3089\u3067\u3059\u3002<span style=\"color: #ff0000;\">\u30eb\u30fc\u30c8\u5185\u306e\u6570\u5b57\u306f\u639b\u3051\u7b97\u304c\u53ef\u80fd\u3067\u3059\u3002<\/span><\/p>\n<p>\u6839\u53f7\uff08\u30eb\u30fc\u30c8\uff09\u306e\u639b\u3051\u7b97\u3067\u306f\u3001\u4ee5\u4e0b\u306e\u516c\u5f0f\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-2506\" src=\"https:\/\/hatsudy.com\/jp\/wp-content\/uploads\/2020\/11\/itht1.jpg\" alt=\"\" width=\"472\" height=\"72\" \/><\/p>\n<p>\u305d\u306e\u305f\u3081\u3001\u4f8b\u3048\u3070\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u8a08\u7b97\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<ul>\n<li>\\(\\sqrt{2}\u00d7\\sqrt{3}=\\sqrt{6}\\)<\/li>\n<li>\\(\\sqrt{7}\u00d7\\sqrt{11}=\\sqrt{77}\\)<\/li>\n<\/ul>\n<p>\u307e\u305f\u3001\u5272\u308a\u7b97\u306f\u639b\u3051\u7b97\u3068\u540c\u3058\u3067\u3059\u3002\u5272\u308a\u7b97\u306f\u5206\u6570\u306e\u639b\u3051\u7b97\u306b\u76f4\u3059\u3053\u3068\u304c\u3067\u304d\u308b\u304b\u3089\u3067\u3059\u3002<span style=\"color: #0000ff;\">\u30eb\u30fc\u30c8\u540c\u58eb\u306e\u639b\u3051\u7b97\u304c\u53ef\u80fd\u306a\u305f\u3081\u3001\u30eb\u30fc\u30c8\u5185\u306e\u6570\u5b57\u3082\u540c\u3058\u3088\u3046\u306b\u5272\u308a\u7b97\u3067\u304d\u307e\u3059\u3002<\/span><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-2507\" src=\"https:\/\/hatsudy.com\/jp\/wp-content\/uploads\/2020\/11\/itht2.jpg\" alt=\"\" width=\"600\" height=\"128\" \/><\/p>\n<p>\u305d\u306e\u305f\u3081\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u5272\u308a\u7b97\u3092\u8a08\u7b97\u3057\u307e\u3059\u3002<\/p>\n<ul>\n<li>\\(\\sqrt{21}\u00f7\\sqrt{3}=\\sqrt{7}\\)<\/li>\n<li>\\(\\sqrt{15}\u00f7\\sqrt{5}=\\sqrt{3}\\)<\/li>\n<\/ul>\n<p>\u30eb\u30fc\u30c8\u540c\u58eb\u306e\u639b\u3051\u7b97\u30fb\u5272\u308a\u7b97\u3067\u306f\u3001\u901a\u5e38\u306e\u639b\u3051\u7b97\u30fb\u5272\u308a\u7b97\u3092\u3059\u308c\u3070\u3044\u3044\u3067\u3059\u3002\u9055\u3046\u306e\u306f\u30eb\u30fc\u30c8\u304c\u3042\u308b\u304b\u3069\u3046\u304b\u3060\u3051\u3067\u3059\u3002<\/p>\n<h3>\u6574\u6570\u3068\u5e73\u65b9\u6839\u306f\u5225\u3005\u306b\u639b\u3051\u7b97\u30fb\u5272\u308a\u7b97\u3092\u3059\u308b<\/h3>\n<p>\u305f\u3060\u91cd\u8981\u306a\u306e\u306f\u3001<span style=\"color: #0000ff;\">\u6574\u6570\u3068\u5e73\u65b9\u6839\u3092\u5206\u3051\u3066\u639b\u3051\u7b97\u307e\u305f\u306f\u5272\u308a\u7b97\u3092\u3059\u308b\u3053\u3068\u3067\u3059\u3002<\/span>\u6574\u6570\u3068\u5e73\u65b9\u6839\u306f\u307e\u3063\u305f\u304f\u5225\u306e\u6570\u5b57\u3060\u304b\u3089\u3067\u3059\u3002<\/p>\n<p>\u30eb\u30fc\u30c8\u3067\u306f\\(3\\sqrt{2}\\)\u306a\u3069\u306e\u8a18\u8f09\u3055\u308c\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002\u3053\u308c\u306f3\u3068\\(\\sqrt{2}\\)\u306e\u639b\u3051\u7b97\u3067\u3042\u308a\u3001\\(3\u00d7\\sqrt{2}\\)\u3068\u610f\u5473\u306f\u540c\u3058\u3067\u3059\u3002\u305f\u3060\\(\u00d7\\)\u3092\u7701\u7565\u3059\u308b\u306e\u304c\u57fa\u672c\u306a\u306e\u3067\u3001\\(3\\sqrt{2}\\)\u3068\u8a18\u3055\u308c\u307e\u3059\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-2508\" src=\"https:\/\/hatsudy.com\/jp\/wp-content\/uploads\/2020\/11\/itht3.jpg\" alt=\"\" width=\"362\" height=\"63\" \/><\/p>\n<p>\u30eb\u30fc\u30c8\u306e\u524d\u306b\u3042\u308b\u6570\u5b57\uff08\u6574\u6570\uff09\u3092\u5206\u3051\u3066\u8003\u3048\u308b\u305f\u3081\u3001\u6574\u6570\u3068\u30eb\u30fc\u30c8\u306f\u5225\u3005\u306b\u639b\u3051\u7b97\u3092\u3057\u307e\u3057\u3087\u3046\u3002\u3064\u307e\u308a\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-2509\" src=\"https:\/\/hatsudy.com\/jp\/wp-content\/uploads\/2020\/11\/itht4.jpg\" alt=\"\" width=\"600\" height=\"58\" \/><\/p>\n<p>\u6574\u6570\u306f\u6574\u6570\u3068\u639b\u3051\u7b97\u3092\u3057\u307e\u3059\u3002\u4e00\u65b9\u3067\u30eb\u30fc\u30c8\u306f\u30eb\u30fc\u30c8\u3068\u639b\u3051\u7b97\u3092\u3057\u307e\u3059\u3002\u6574\u6570\u3068\u30eb\u30fc\u30c8\u306e\u639b\u3051\u7b97\u3092\u3059\u308b\u3053\u3068\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u639b\u3051\u7b97\u3068\u5272\u308a\u7b97\u3067\u306f\u3001\u6574\u6570\u3068\u30eb\u30fc\u30c8\u3092\u5b8c\u5168\u306b\u5206\u3051\u3066\u8a08\u7b97\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n<p>\u305d\u306e\u305f\u3081\u3001\u4f8b\u3048\u3070\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<ul>\n<li>\\(3\u00d7\\sqrt{2}=3\\sqrt{2}\\)<\/li>\n<li>\\(2\u00d74\\sqrt{2}=8\\sqrt{2}\\)<\/li>\n<li>\\(2\\sqrt{2}\u00d73\\sqrt{5}=6\\sqrt{10}\\)<\/li>\n<\/ul>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-2510\" src=\"https:\/\/hatsudy.com\/jp\/wp-content\/uploads\/2020\/11\/itht5.jpg\" alt=\"\" width=\"500\" height=\"213\" \/><\/p>\n<p>\u3053\u306e\u3088\u3046\u306b\u3001\u6574\u6570\u3068\u6839\u53f7\uff08\u30eb\u30fc\u30c8\uff09\u3092\u5206\u3051\u3066\u8a08\u7b97\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>\u305f\u3060\u3001<span style=\"color: #ff0000;\">\u6574\u6570\u306f\u30eb\u30fc\u30c8\u306b\u76f4\u3059\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/span>2\u4e57\u3055\u305b\u308c\u3070\u3001\u6574\u6570\u3092\u30eb\u30fc\u30c8\u306b\u5909\u63db\u3067\u304d\u307e\u3059\u3002\u4f8b\u3048\u3070\u3001\\(2=\\sqrt{2^2}=\\sqrt{4}\\)\u3067\u3059\u3002\u540c\u3058\u3088\u3046\u306b\u8003\u3048\u308b\u3068\u3001\\(3=\\sqrt{9}\\)\u3067\u3059\u3002\u307e\u305f\u3001\\(4=\\sqrt{16}\\)\u3067\u3059\u3002<\/p>\n<p>\u6574\u6570\u3068\u30eb\u30fc\u30c8\u306e\u639b\u3051\u7b97\u3084\u5272\u308a\u7b97\u306f\u3067\u304d\u307e\u305b\u3093\u3002\u305d\u3053\u3067\u6574\u6570\u3092\u30eb\u30fc\u30c8\u306b\u76f4\u305b\u3070\u3001\u30eb\u30fc\u30c8\u540c\u58eb\u306e\u639b\u3051\u7b97\u3068\u5272\u308a\u7b97\u304c\u53ef\u80fd\u306b\u306a\u308a\u307e\u3059\u3002\u4f8b\u3048\u3070\u3001\u4ee5\u4e0b\u306e\u554f\u984c\u306f\u3069\u306e\u3088\u3046\u306b\u89e3\u3051\u3070\u3044\u3044\u3067\u3057\u3087\u3046\u304b\u3002<\/p>\n<ul>\n<li>\\(\\displaystyle\\frac{\\sqrt{12}}{2}\\)<\/li>\n<\/ul>\n<p>\\(\\sqrt{12}\\)\u30682\u306f\u639b\u3051\u7b97\u30fb\u5272\u308a\u7b97\u304c\u3067\u304d\u307e\u305b\u3093\u3002\u305d\u3053\u3067\u3001\u6839\u53f7\uff08\u30eb\u30fc\u30c8\uff09\u3092\u4f7f\u3063\u30662\u3092\u8868\u3057\u307e\u3057\u3087\u3046\u3002\\(2=\\sqrt{4}\\)\u306a\u306e\u3067\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u8a08\u7b97\u3067\u304d\u307e\u3059\u3002<\/p>\n<ul>\n<li>\\(\\displaystyle\\frac{\\sqrt{12}}{2}=\\displaystyle\\frac{\\sqrt{12}}{\\sqrt{4}}=\\sqrt{3}\\)<\/li>\n<\/ul>\n<p>\u6574\u6570\u3068\u30eb\u30fc\u30c8\u306f\u639b\u3051\u7b97\u3067\u304d\u307e\u305b\u3093\u3002\u305f\u3060\u3001\u6574\u6570\u306f\u30eb\u30fc\u30c8\u306b\u76f4\u3059\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u305d\u306e\u305f\u3081\u3088\u308a\u6b63\u78ba\u306b\u3044\u3046\u3068\u3001\u6574\u6570\u3092\u30eb\u30fc\u30c8\u306b\u5909\u63db\u3059\u308b\u3053\u3068\u3067\u3001\u6574\u6570\u3068\u30eb\u30fc\u30c8\u306e\u639b\u3051\u7b97\u30fb\u5272\u308a\u7b97\u304c\u53ef\u80fd\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<h3>\u30eb\u30fc\u30c8\u540c\u58eb\u306e\u639b\u3051\u7b97\u30fb\u5272\u308a\u7b97\u304c\u53ef\u80fd\u306a\u7406\u7531<\/h3>\n<p>\u305d\u308c\u3067\u306f\u3001\u306a\u305c\u30eb\u30fc\u30c8\u540c\u58eb\u306e\u639b\u3051\u7b97\u30fb\u5272\u308a\u7b97\u304c\u53ef\u80fd\u306a\u306e\u3067\u3057\u3087\u3046\u304b\u3002\u3053\u306e\u7406\u7531\u306b\u3064\u3044\u3066\u3001\u7406\u89e3\u3057\u3066\u3044\u308b\u4eba\u306f\u5c11\u306a\u3044\u3067\u3059\u3002<\/p>\n<p>\u3053\u306e\u7406\u7531\u3092\u7406\u89e3\u3059\u308b\u305f\u3081\u306b\u306f\u3001\u4e00\u6b21\u65b9\u7a0b\u5f0f\u3092\u4f7f\u3044\u307e\u3059\u3002<span style=\"color: #0000ff;\">\u65b9\u7a0b\u5f0f\u306b\u306f\u3001\u4e21\u8fba\u306b\u540c\u3058\u6570\u3092\u639b\u3051\u3066\u3082\u554f\u984c\u306a\u3044\u3068\u3044\u3046\u6027\u8cea\u304c\u3042\u308a\u307e\u3059\u3002<\/span>\u4f8b\u3048\u3070\u3001\u4ee5\u4e0b\u306e\u3066\u3093\u3073\u3093\u304c\u3042\u308b\u3068\u3057\u307e\u3059\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-2218\" src=\"https:\/\/hatsudy.com\/jp\/wp-content\/uploads\/2020\/11\/eryse2-1.jpg\" alt=\"\" width=\"462\" height=\"234\" \/><\/p>\n<p>2\u3064\u304c\u540c\u3058\u5834\u5408\u3001\u4e21\u8fba\u3092\u4f55\u500d\u3057\u3066\u3082\u30a4\u30b3\u30fc\u30eb\u306f\u6210\u308a\u7acb\u3061\u307e\u3059\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-2223\" src=\"https:\/\/hatsudy.com\/jp\/wp-content\/uploads\/2020\/11\/eryse5.jpg\" alt=\"\" width=\"462\" height=\"361\" \/><\/p>\n<p>\u306a\u305c\u6839\u53f7\uff08\u30eb\u30fc\u30c8\uff09\u306e\u639b\u3051\u7b97\u304c\u6210\u7acb\u3059\u308b\u306e\u304b\u7406\u89e3\u3059\u308b\u305f\u3081\u306b\u306f\u3001\u65b9\u7a0b\u5f0f\u306e\u6027\u8cea\u3092\u304a\u3055\u3089\u3044\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n<p><strong>\u30fb\u30eb\u30fc\u30c8\u306e\u639b\u3051\u7b97\u304c\u6210\u308a\u7acb\u3064\u7406\u7531\u3092\u8a3c\u660e\u3059\u308b<\/strong><\/p>\n<p>\u6b21\u306b\u3001\u5e73\u65b9\u6839\u306e\u8a08\u7b97\u3092\u3059\u308b\u3068\u304d\u3001\u30eb\u30fc\u30c8\u540c\u58eb\u306e\u639b\u3051\u7b97\u30fb\u5272\u308a\u7b97\u304c\u53ef\u80fd\u306b\u306a\u308b\u7406\u7531\u3092\u8a3c\u660e\u3057\u307e\u3057\u3087\u3046\u3002\u305d\u3053\u3067\u3001\\(\\sqrt{a}\\)\u3068\\(\\sqrt{b}\\)\u306e\u639b\u3051\u7b97\u3092\u3059\u308b\u5834\u9762\u3092\u8003\u3048\u307e\u3059\u3002<\/p>\n<p>\u6700\u521d\u306b\\(\\sqrt{a}\u00d7\\sqrt{b}\\)\u306e2\u4e57\u3092\u3057\u307e\u3059\u3002\u300c\u306a\u305c2\u4e57\u3059\u308b\u306e\u304b\uff1f\u300d\u3068\u8003\u3048\u3066\u306f\u3044\u3051\u307e\u305b\u3093\u3002\u3072\u3068\u307e\u305a2\u4e57\u3057\u307e\u3059\u30022\u4e57\u3059\u308b\u3068\u3001\u3069\u3046\u306a\u308b\u3067\u3057\u3087\u3046\u304b\u3002\u639b\u3051\u7b97\u3067\u3042\u308b\u305f\u3081\u3001\u304b\u3063\u3053\u304c\u3042\u3063\u3066\u3082\u306a\u304f\u3066\u3082\u610f\u5473\u306f\u540c\u3058\u3067\u3059\u3002<span style=\"color: #ff0000;\">\u639b\u3051\u7b97\u3067\u306f\u3001\u304b\u3063\u3053\u306f\u81ea\u7531\u306b\u5916\u3059\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/span><\/p>\n<p>\u4f8b\u3048\u3070\u3001\u4ee5\u4e0b\u306e\u8a08\u7b97\u306f\u7b54\u3048\u304c\u540c\u3058\u3067\u3059\u3002<\/p>\n<ul>\n<li>\\((2\u00d73)\u00d74=2\u00d73\u00d74\\)<\/li>\n<\/ul>\n<p>\u3053\u308c\u3092\u7d50\u5408\u6cd5\u5247\u3068\u3044\u3044\u307e\u3059\u3002\u305d\u306e\u305f\u3081\u3001\\(\\sqrt{a}\u00d7\\sqrt{b}\\)\u306e2\u4e57\u306f\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u8a08\u7b97\u3067\u304d\u307e\u3059\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-2515\" src=\"https:\/\/hatsudy.com\/jp\/wp-content\/uploads\/2020\/11\/itht7.jpg\" alt=\"\" width=\"600\" height=\"198\" \/><\/p>\n<p>\u3053\u306e\u3088\u3046\u306b\u3001\\(\\left(\\sqrt{a}\u00d7\\sqrt{b}\\right)^2=a\u00d7b\\)\u3068\u306a\u308a\u307e\u3059\u3002<\/p>\n<p>\u6b21\u306b\u3053\u306e\u65b9\u7a0b\u5f0f\u3092\u5909\u63db\u3057\u3066\u307f\u307e\u3057\u3087\u3046\u3002\u6700\u521d\u3001\\(\\sqrt{a}\u00d7\\sqrt{b}\\)\u306e2\u4e57\u3092\u3057\u307e\u3057\u305f\u3002\u305d\u3053\u3067\u3001\u5143\u306e\u72b6\u614b\u306b\u623b\u3059\u306e\u3067\u3059\u3002\u5177\u4f53\u7684\u306b\u306f\u3001\u4e21\u8fba\u306b\u5bfe\u3057\u3066\u30eb\u30fc\u30c8\u306e\u8a18\u53f7\u3092\u4ed8\u3051\u307e\u3057\u3087\u3046\u3002<\/p>\n<p>\u7d2f\u4e57\u306f\u639b\u3051\u7b97\u306e\u4e00\u7a2e\u3067\u3059\u3002\u307e\u305f\u3001\u6574\u6570\u306f\u7d2f\u4e57\u3059\u308b\u3053\u3068\u3067\u30eb\u30fc\u30c8\u306b\u5909\u63db\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u3064\u307e\u308a\u3001\u6574\u6570\u3092\u30eb\u30fc\u30c8\u306b\u3059\u308b\u306e\u306f\u639b\u3051\u7b97\u306e\u4e00\u7a2e\u3067\u3059\u3002\u65b9\u7a0b\u5f0f\u3067\u306f\u3001\u4e21\u8fba\u306b\u540c\u3058\u3082\u306e\u3092\u639b\u3051\u3066\u3082\u554f\u984c\u3042\u308a\u307e\u305b\u3093\u3002\u3053\u306e\u6027\u8cea\u3092\u5229\u7528\u3057\u3066\u3001\u4e21\u8fba\u306b\u30eb\u30fc\u30c8\u3092\u4ed8\u3051\u307e\u3057\u3087\u3046\u3002\u305d\u3046\u3059\u308b\u3068\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-2517\" src=\"https:\/\/hatsudy.com\/jp\/wp-content\/uploads\/2020\/11\/itht9.jpg\" alt=\"\" width=\"600\" height=\"325\" \/><\/p>\n<p>\u3053\u306e\u3088\u3046\u306b\u3057\u3066<span style=\"color: #0000ff;\">\u3001\\(\\sqrt{a}\u00d7\\sqrt{b}=\\sqrt{a\u00d7b}\\)\u3068\u8a3c\u660e\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3057\u305f\u3002<\/span>\u5e73\u65b9\u6839\u540c\u58eb\u639b\u3051\u7b97\u30fb\u5272\u308a\u7b97\u3092\u3067\u304d\u308b\u306e\u306f\u3001\u3053\u308c\u307e\u3067\u306e\u6570\u5b66\u306e\u77e5\u8b58\u3092\u4f7f\u3046\u3053\u3068\u3067\u8a3c\u660e\u3067\u304d\u307e\u3059\u3002<\/p>\n<h2>\u7d20\u6570\u3092\u4f7f\u3044\u3001\u7d20\u56e0\u6570\u5206\u89e3\u3092\u884c\u3046<\/h2>\n<p>\u306a\u304a\u5e73\u65b9\u6839\u306e\u4e2d\u306b\u3042\u308b\u6570\u5b57\u306f\u3067\u304d\u308b\u3060\u3051\u5c0f\u3055\u304f\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u305d\u306e\u5834\u5408\u3001\u3069\u306e\u3088\u3046\u306b\u3059\u308c\u3070\u3044\u3044\u306e\u3067\u3057\u3087\u3046\u304b\u3002\u6574\u6570\u30922\u4e57\u3059\u308b\u3053\u3068\u3067\u3001\u6839\u53f7\u306b\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u540c\u3058\u3088\u3046\u306b\u3001<span style=\"color: #0000ff;\">\u30eb\u30fc\u30c8\u306e\u4e2d\u306b2\u4e57\u304c\u3042\u308b\u5834\u5408\u3001\u6574\u6570\u306b\u5909\u3048\u305f\u5f8c\u306b\u6839\u53f7\u306e\u5916\u3078\u51fa\u3059\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/span><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-2518\" src=\"https:\/\/hatsudy.com\/jp\/wp-content\/uploads\/2020\/11\/itht11.jpg\" alt=\"\" width=\"382\" height=\"65\" \/><\/p>\n<p>\u6574\u6570\u3092\u30eb\u30fc\u30c8\u306b\u3059\u308b\u3060\u3051\u3067\u306a\u304f\u3001\u30eb\u30fc\u30c8\u306e\u4e00\u90e8\u3092\u6574\u6570\u306b\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u4f8b\u3048\u3070\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<ul>\n<li>\\(\\sqrt{12}=\\sqrt{2\u00d72\u00d73}=\\sqrt{2^2\u00d73}=2\\sqrt{3}\\)<\/li>\n<\/ul>\n<p>\u3069\u306e\u3088\u3046\u306b\u3059\u308c\u3070\u3001\u52b9\u7387\u7684\u306b\u6839\u53f7\u306e\u4e2d\u306b\u7d2f\u4e57\u3092\u898b\u3064\u3051\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u306e\u3067\u3057\u3087\u3046\u304b\u3002\u305d\u306e\u65b9\u6cd5\u304c\u7d20\u56e0\u6570\u5206\u89e3\u3067\u3059\u3002\u7d20\u6570\u3092\u5229\u7528\u3057\u3066\u5272\u308a\u7b97\u3092\u3059\u308b\u306e\u304c\u7d20\u56e0\u6570\u5206\u89e3\u3067\u3059\u3002<\/p>\n<p>\u6570\u5b57\u306b\u306f\u7d20\u6570\u304c\u3042\u308a\u307e\u3059\u3002<span style=\"color: #0000ff;\">\u7d20\u6570\u3068\u306f\u3001\u300c1\u3068\u305d\u306e\u6570\u306e\u307f\u7d04\u6570\u3092\u3082\u3064\u6570\u300d\u3092\u6307\u3057\u307e\u3059\u3002<\/span>\u7d20\u6570\u306b\u306f\u3001\u4f8b\u3048\u3070\u4ee5\u4e0b\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<ul>\n<li>\u7d20\u6570\uff1a2\u30013\u30015\u30017\u300111\u300113\u300117\u300119<\/li>\n<\/ul>\n<p>\u4f8b\u3048\u3070\u30017\u306f1\u30687\u3057\u304b\u7d04\u6570\u304c\u3042\u308a\u307e\u305b\u3093\u3002\u540c\u3058\u304f\u300111\u306e\u7d04\u6570\u306f1\u306811\u3060\u3051\u3067\u3059\u3002\u305d\u308c\u4ee5\u5916\u306e\u6570\u3067\u5272\u3063\u3066\u3082\u6574\u6570\u306b\u306a\u308a\u307e\u305b\u3093\u3002\u4e00\u65b9\u30674\u306e\u7d04\u6570\u306f1\u30682\u30684\u3067\u3059\u30021\u30684\u3060\u3051\u3067\u306a\u304f\u30012\u3082\u7d04\u6570\u3067\u3059\u3002\u305d\u306e\u305f\u3081\u30014\u306f\u7d20\u6570\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002<\/p>\n<p><span style=\"color: #0000ff;\">\u6574\u6570\uff08\u81ea\u7136\u6570\uff09\u3092\u7d20\u6570\u3067\u5272\u308b\u3053\u3068\u3067\u3001\u639b\u3051\u7b97\u306e\u5f0f\u306b\u76f4\u3059\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/span>\u639b\u3051\u7b97\u306e\u8a08\u7b97\u306e\u9006\u304c\u7d20\u56e0\u6570\u5206\u89e3\u3060\u3068\u7406\u89e3\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-2520\" src=\"https:\/\/hatsudy.com\/jp\/wp-content\/uploads\/2020\/11\/itht12.jpg\" alt=\"\" width=\"382\" height=\"125\" \/><\/p>\n<p>\u7d20\u56e0\u6570\u5206\u89e3\u3068\u3044\u3046\u3068\u3001\u8a00\u8449\u304c\u96e3\u3057\u3044\u3067\u3059\u3002\u305d\u3053\u3067\u3001\u6570\u5b57\u3092\u639b\u3051\u7b97\u306e\u5f0f\u306b\u5206\u89e3\u3059\u308b\u65b9\u6cd5\u3060\u3068\u7406\u89e3\u3059\u308c\u3070\u3001\u7d20\u56e0\u6570\u5206\u89e3\u306e\u6982\u5ff5\u306f\u7c21\u5358\u3067\u3059\u3002\u7d20\u6570\u306f\u305d\u308c\u4ee5\u4e0a\u306e\u7d04\u5206\u304c\u3067\u304d\u307e\u305b\u3093\u3002\u305d\u3053\u3067\u7d20\u6570\u3092\u4f7f\u3048\u3070\u3001\u639b\u3051\u7b97\u306b\u76f4\u3059\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<h3>\u3069\u306e\u3088\u3046\u306b\u7d20\u56e0\u6570\u5206\u89e3\u3092\u884c\u3046\uff1f\u639b\u3051\u7b97\u306b\u3059\u308b\u624b\u9806<\/h3>\n<p>\u305d\u308c\u3067\u306f\u3001\u3069\u306e\u3088\u3046\u306b\u3057\u3066\u7d20\u56e0\u6570\u5206\u89e3\u3092\u3059\u308c\u3070\u3044\u3044\u306e\u3067\u3057\u3087\u3046\u304b\u3002\u4f8b\u3068\u3057\u3066\u3001300\u3092\u7d20\u56e0\u6570\u5206\u89e3\u3057\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n<p>\u3084\u308a\u65b9\u3068\u3057\u3066\u306f\u3001<span style=\"color: #ff0000;\">\u5c0f\u3055\u3044\u7d20\u6570\u304b\u3089\u9806\u306b\u5272\u308a\u7b97\u3092\u3057\u3066\u3044\u304d\u307e\u3057\u3087\u3046\u3002<\/span>\u5c0f\u3055\u3044\u7d20\u6570\u306f2\u3067\u3059\u3002\u305d\u3053\u3067\u30012\u3067\u5272\u308a\u7b97\u3067\u304d\u308b\u304b\u3069\u3046\u304b\u8003\u3048\u307e\u3057\u3087\u3046\u3002300\u30922\u3067\u5272\u308b\u3068\u30012\u3068150\u306b\u5206\u3051\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\\(300=2\u00d7150\\)\u3067\u3059\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-2522\" src=\"https:\/\/hatsudy.com\/jp\/wp-content\/uploads\/2020\/11\/itht14-1.jpg\" alt=\"\" width=\"210\" height=\"186\" \/><\/p>\n<p>\u3053\u306e\u65b9\u6cd5\u306b\u3088\u3063\u3066\u3001\u7d20\u56e0\u6570\u5206\u89e3\u3092\u4e00\u56de\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3057\u305f\u3002\u305f\u3060\u3001150\u306f\u7d20\u6570\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u3055\u3089\u306b\u7d20\u6570\u306b\u3088\u3063\u3066\u5272\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u305d\u3053\u3067\u3001\u518d\u3073\u7d20\u6570\u3067\u5272\u308a\u307e\u3057\u3087\u3046\u30022\u3067\u5272\u308b\u3068\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-2523\" src=\"https:\/\/hatsudy.com\/jp\/wp-content\/uploads\/2020\/11\/itht15.jpg\" alt=\"\" width=\"249\" height=\"328\" \/><\/p>\n<p>300\u306b\u3064\u3044\u3066\u30012\u306b\u3088\u3063\u30662\u56de\u5272\u308b\u3053\u3068\u306775\u3068\u306a\u308a\u307e\u3059\u3002\u3064\u307e\u308a\u3001\\(300=2\u00d72\u00d775\\)\u3067\u3059\u3002\u305f\u3060\u300175\u306f\u7d20\u6570\u3067\u3042\u308a\u307e\u305b\u3093\u3002\u305d\u3053\u3067\u3001\u3055\u3089\u306b\u7d20\u56e0\u6570\u5206\u89e3\u3092\u9032\u3081\u307e\u3057\u3087\u3046\u3002<\/p>\n<p>75\u306f2\u3067\u5272\u308c\u307e\u305b\u3093\u3002\u305d\u3053\u3067\u3001\u6b21\u306f3\u3067\u5272\u308a\u307e\u3059\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-2524\" src=\"https:\/\/hatsudy.com\/jp\/wp-content\/uploads\/2020\/11\/itht16.jpg\" alt=\"\" width=\"313\" height=\"474\" \/><\/p>\n<p>\u305d\u306e\u7d50\u679c\u3001\\(300=2\u00d72\u00d73\u00d725\\)\u3068\u306a\u308a\u307e\u3059\u3002\u307e\u305f\u540c\u3058\u3088\u3046\u306b\u3001\u7d20\u56e0\u6570\u5206\u89e3\u3092\u9032\u3081\u3066\u3044\u304d\u307e\u3059\u300225\u306f\u7d20\u6570\u3067\u306f\u306a\u304f\u30015\u3067\u5272\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u305d\u306e\u305f\u3081\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-2525\" src=\"https:\/\/hatsudy.com\/jp\/wp-content\/uploads\/2020\/11\/itht17.jpg\" alt=\"\" width=\"397\" height=\"616\" \/><\/p>\n<p>\u7d20\u6570\u3067\u5272\u308b\u3053\u3068\u3067\u3001\u6700\u7d42\u7684\u306b\u4ee5\u4e0b\u306e\u4e8b\u5b9f\u304c\u5206\u304b\u308a\u307e\u3057\u305f\u3002<\/p>\n<ul>\n<li>\\(300=2\u00d72\u00d73\u00d75\u00d75\\)<\/li>\n<\/ul>\n<p>5\u306f\u7d20\u6570\u3067\u3042\u308b\u305f\u3081\u3001\u305d\u308c\u4ee5\u4e0a\u5272\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u305b\u3093\u3002<span style=\"color: #0000ff;\">\u7d20\u56e0\u6570\u5206\u89e3\u3067\u306f\u3001\u6700\u5f8c\u306b\u7d20\u6570\u304c\u8868\u308c\u305f\u3089\u5272\u308a\u7b97\u3092\u30b9\u30c8\u30c3\u30d7\u3057\u307e\u3059\u3002<\/span>\u305d\u306e\u5f8c\u3001\u5272\u3063\u305f\u7d20\u6570\u3068\u6700\u5f8c\u306b\u51fa\u3066\u304d\u305f\u7d20\u6570\u3092\u3059\u3079\u3066\u96c6\u3081\u307e\u3059\u3002\u4e0a\u56f3\u306b\u3042\u308b\u3001\u4e38\u306e\u4e2d\u306b\u3042\u308b\u7d20\u6570\u3092\u3059\u3079\u3066\u639b\u3051\u5408\u308f\u305b\u308b\u3068300\u306b\u306a\u308b\u305f\u3081\u3001\u7d20\u56e0\u6570\u5206\u89e3\u304c\u5b8c\u4e86\u3057\u307e\u3059\u3002<\/p>\n<p><strong>\u30fb\u7d20\u56e0\u6570\u5206\u89e3\u3059\u308b\u3068\u304d\u306e\u8a18\u53f7<\/strong><\/p>\n<p>\u306a\u304a\u5b9f\u969b\u306b\u7d20\u56e0\u6570\u5206\u89e3\u3092\u3059\u308b\u3068\u304d\u3001\u52b9\u7387\u7684\u306b\u7d20\u65e9\u304f\u8a08\u7b97\u3057\u306a\u3051\u308c\u3070\u3044\u3051\u307e\u305b\u3093\u3002\u305d\u306e\u305f\u3081\u3001\u4e0a\u56f3\u306e\u3088\u3046\u306a\u77e2\u5370\u3092\u4f7f\u3063\u3066\u7d20\u56e0\u6570\u5206\u89e3\u3092\u3059\u308b\u3053\u3068\u306f\u307b\u307c\u3042\u308a\u307e\u305b\u3093\u3002\u305d\u3046\u3067\u306f\u306a\u304f\u3001\u4ee5\u4e0b\u306e\u30de\u30fc\u30af\u3092\u5229\u7528\u3057\u307e\u3059\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-2541\" src=\"https:\/\/hatsudy.com\/jp\/wp-content\/uploads\/2020\/11\/trhes1.jpg\" alt=\"\" width=\"302\" height=\"106\" \/><\/p>\n<p>\u4f7f\u3044\u65b9\u3068\u3057\u3066\u306f\u3001\u8a18\u53f7\u306e\u4e2d\u306b\u6574\u6570\uff08\u81ea\u7136\u6570\uff09\u3092\u8a18\u3057\u307e\u3059\u3002\u307e\u305f\u3001\u8a18\u53f7\u306e\u5de6\u306b\u7d20\u6570\u3092\u66f8\u304d\u307e\u3059\u3002\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-2542\" src=\"https:\/\/hatsudy.com\/jp\/wp-content\/uploads\/2020\/11\/trhes2.jpg\" alt=\"\" width=\"316\" height=\"196\" \/><\/p>\n<p>\u4f7f\u3044\u65b9\u3068\u3057\u3066\u306f\u3001\u5148\u307b\u3069\u77e2\u5370\u306e\u56f3\u3068\u540c\u3058\u3067\u3059\u3002\u7d20\u6570\u3067\u5272\u3063\u3066\u3044\u304f\u3053\u3068\u3067\u3001\u6574\u6570\u3092\u5206\u89e3\u3057\u3066\u3044\u304d\u307e\u3059\u3002\u4f8b\u3048\u3070\u3001300\u306e\u7d20\u56e0\u6570\u5206\u89e3\u3067\u306f\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-2543\" src=\"https:\/\/hatsudy.com\/jp\/wp-content\/uploads\/2020\/11\/trhes5.jpg\" alt=\"\" width=\"600\" height=\"288\" \/><\/p>\n<p>\u6700\u5f8c\u306b\u7d20\u6570\u304c\u8868\u308c\u305f\u5834\u5408\u3001\u7d20\u56e0\u6570\u5206\u89e3\u306f\u7d42\u308f\u308a\u3067\u3059\u3002\u305d\u306e\u5f8c\u3001\u7d20\u6570\u3092\u3059\u3079\u3066\u96c6\u3081\u308b\u3053\u3068\u3067\u639b\u3051\u7b97\u306e\u5f0f\u3092\u4f5c\u308c\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002\u77e2\u5370\u306e\u56f3\u3068\u610f\u5473\u306f\u540c\u3058\u3067\u3059\u3002\u9055\u3044\u3068\u3057\u3066\u306f\u3001\u3053\u306e\u8a18\u53f7\u3092\u4f7f\u3046\u3053\u3068\u3067\u3001\u3088\u308a\u52b9\u7387\u7684\u306b\u7d20\u56e0\u6570\u5206\u89e3\u3092\u884c\u3048\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<h3>\u3069\u306e\u9806\u756a\u3067\u8a08\u7b97\u3057\u3066\u3082\u7d20\u56e0\u6570\u5206\u89e3\u306e\u7b54\u3048\u306f\u540c\u3058<\/h3>\n<p>\u3061\u306a\u307f\u306b\u3001\u7d20\u56e0\u6570\u5206\u89e3\u306f\u3069\u306e\u9806\u756a\u3067\u8a08\u7b97\u3057\u3066\u3082\u3044\u3044\u3067\u3059\u3002\u6700\u7d42\u7684\u306a\u7b54\u3048\u306f\u540c\u3058\u306b\u306a\u308b\u304b\u3089\u3067\u3059\u3002\u4f8b\u3048\u3070\u3001300\u306e\u7d20\u56e0\u6570\u5206\u89e3\u3067\u306f\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u3001<span style=\"color: #ff0000;\">\u5272\u308a\u7b97\u306e\u9806\u756a\u304c\u9055\u3063\u305f\u3068\u3057\u3066\u3082\u540c\u3058\u7b54\u3048\u306b\u306a\u308a\u307e\u3059\u3002<\/span><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-2544\" src=\"https:\/\/hatsudy.com\/jp\/wp-content\/uploads\/2020\/11\/trhes6.jpg\" alt=\"\" width=\"559\" height=\"331\" \/><\/p>\n<p>\u5148\u307b\u3069\u3001\u300c\u7d20\u56e0\u6570\u5206\u89e3\u3067\u306f\u5c0f\u3055\u3044\u6570\u306e\u7d20\u6570\u304b\u3089\u9806\u306b\u5272\u308a\u7b97\u3092\u3057\u3066\u3044\u304f\u300d\u3068\u89e3\u8aac\u3057\u307e\u3057\u305f\u3002\u3053\u308c\u306f\u30012\u30843\u306a\u3069\u5c0f\u3055\u3044\u7d20\u6570\u3067\u3042\u308b\u307b\u3069\u5272\u308a\u7b97\u306e\u8a08\u7b97\u304c\u7c21\u5358\u306b\u306a\u308a\u3001\u30df\u30b9\u304c\u5c11\u306a\u304f\u306a\u308b\u304b\u3089\u3067\u3059\u3002<span style=\"color: #0000ff;\">\u305f\u3060\u5834\u5408\u306b\u3088\u3063\u3066\u306f\u3001\u5927\u304d\u3044\u7d20\u6570\u3067\u5272\u308a\u7b97\u3092\u3057\u305f\u307b\u3046\u304c\u8a08\u7b97\u30df\u30b9\u3092\u9632\u3052\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002<\/span><\/p>\n<p>\u5272\u308a\u7b97\u3092\u3057\u305f\u3044\u6574\u6570\u304c\u5076\u6570\u306e\u5834\u5408\u3001\u5fc5\u305a2\u3067\u5272\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u4e00\u65b9\u3067\u5947\u6570\u306e\u5834\u5408\u3001\u5c0f\u3055\u3044\u6570\u306e\u7d20\u6570\u3067\u5272\u308c\u308b\u304b\u3069\u3046\u304b\u4e0d\u660e\u306a\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<p>\u4f8b\u3048\u3070\u3001105\u306f\u3069\u306e\u3088\u3046\u306a\u7d20\u6570\u3067\u5272\u308c\u308b\u3067\u3057\u3087\u3046\u304b\u3002105\u306f3\u3067\u5272\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u305f\u3060\u30013\u3067\u5272\u308c\u308b\u3053\u3068\u306b\u6c17\u3065\u304d\u306b\u304f\u3044\u3067\u3059\u3002\u4e00\u65b9\u3067105\u30925\u3067\u5272\u308c\u308b\u3053\u3068\u306b\u3064\u3044\u3066\u306f\u3001\u7c21\u5358\u306b\u6c17\u3065\u304f\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<p><span style=\"color: #0000ff;\">\u300c\u3069\u306e\u9806\u756a\u3067\u7d20\u56e0\u6570\u5206\u89e3\u3057\u3066\u3082\u304b\u307e\u308f\u306a\u3044\u300d\u3068\u3044\u3046\u77e5\u8b58\u306f\u3001\u6570\u5b66\u3067\u306e\u8a08\u7b97\u30df\u30b9\u306e\u9632\u6b62\u306b\u5f79\u7acb\u3061\u307e\u3059\u3002<\/span>\u7d20\u56e0\u6570\u5206\u89e3\u3092\u4f7f\u3046\u3053\u3068\u3067\u3001\u6574\u6570\u3092\u639b\u3051\u7b97\u306e\u5f0f\u306b\u623b\u3059\u5834\u5408\u3001\u7d20\u6570\u3067\u5272\u308b\u3068\u304d\u306e\u9806\u756a\u306f\u6c17\u306b\u3057\u306a\u3044\u3088\u3046\u306b\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n<h3>\u6839\u53f7\uff08\u30eb\u30fc\u30c8\uff09\u306e\u4e2d\u306b\u3042\u308b2\u4e57\u306e\u6570\u5b57\u3092\u5916\u306b\u51fa\u3059<\/h3>\n<p>\u306a\u305c\u3001\u7d20\u56e0\u6570\u5206\u89e3\u3092\u5b66\u3076\u5fc5\u8981\u304c\u3042\u308b\u306e\u3067\u3057\u3087\u3046\u304b\u3002\u305d\u308c\u306f\u3001\u6839\u53f7\uff08\u30eb\u30fc\u30c8\uff09\u306e\u8a08\u7b97\u3067\u7d20\u56e0\u6570\u5206\u89e3\u3092\u591a\u7528\u3059\u308b\u304b\u3089\u3067\u3059\u3002<\/p>\n<p>\u5e73\u65b9\u6839\u306e\u8a08\u7b97\u3067\u306f\u3001\u300c\u30eb\u30fc\u30c8\u306e\u4e2d\u306e\u6570\u5b57\u3092\u3067\u304d\u308b\u3060\u3051\u5c0f\u3055\u304f\u3059\u308b\u300d\u3068\u3044\u3046\u30eb\u30fc\u30eb\u304c\u3042\u308a\u307e\u3059\u3002\u305d\u306e\u305f\u3081\u306b\u306f\u3001\u7d20\u56e0\u6570\u5206\u89e3\u3092\u3057\u306a\u3051\u308c\u3070\u3044\u3051\u307e\u305b\u3093\u3002\u5177\u4f53\u7684\u306b\u306f\u3001\u6839\u53f7\u306e\u4e2d\u306b\u3042\u308b2\u4e57\u306e\u6570\u5b57\u3092\u5916\u306b\u51fa\u3057\u307e\u3059\u3002<\/p>\n<p>\u524d\u8ff0\u306e\u901a\u308a\u3001<span style=\"color: #ff0000;\">\u30eb\u30fc\u30c8\u306e\u4e2d\u306b2\u4e57\u304c\u3042\u308b\u5834\u5408\u3001\u6839\u53f7\u306e\u5916\u306b\u6570\u5b57\u3092\u51fa\u3059\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/span><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-2545\" src=\"https:\/\/hatsudy.com\/jp\/wp-content\/uploads\/2020\/11\/trhes7.jpg\" alt=\"\" width=\"384\" height=\"95\" \/><\/p>\n<p>\u3053\u306e\u516c\u5f0f\u3092\u5229\u7528\u3059\u308b\u3053\u3068\u3067\u3001\u7d20\u56e0\u6570\u5206\u89e3\u3092\u3057\u305f\u5f8c\u306b\u30eb\u30fc\u30c8\u5185\u306e\u6570\u5b57\u3092\u5916\u306b\u51fa\u3059\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u4f8b\u3048\u3070\u3001300\u3092\u7d20\u56e0\u6570\u5206\u89e3\u3059\u308b\u3053\u3068\u3067\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u306a\u308b\u3068\u65e2\u306b\u8a08\u7b97\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<ul>\n<li>\\(300=2\u00d72\u00d73\u00d75\u00d75=2^2\u00d73\u00d75^2\\)<\/li>\n<\/ul>\n<p>\u305d\u308c\u3067\u306f\u3001\\(\\sqrt{300}\\)\u306f\u3069\u306e\u3088\u3046\u306a\u3084\u308a\u65b9\u3067\u8a08\u7b97\u3059\u308c\u3070\u3044\u3044\u306e\u3067\u3057\u3087\u3046\u304b\u3002\\(\\sqrt{300}\\)\u306f\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u8003\u3048\u3066\u3001\u30eb\u30fc\u30c8\u306e\u5916\u306b\u6570\u5b57\u3092\u51fa\u3057\u307e\u3059\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-2546\" src=\"https:\/\/hatsudy.com\/jp\/wp-content\/uploads\/2020\/11\/trhes8.jpg\" alt=\"\" width=\"544\" height=\"251\" \/><\/p>\n<p>\u7d20\u56e0\u6570\u5206\u89e3\u3092\u5b66\u3076\u7406\u7531\u3068\u3057\u3066\u306f\u3001\u5e73\u65b9\u6839\u306e\u8a08\u7b97\u3067\u5229\u7528\u3055\u308c\u308b\u304b\u3089\u3067\u3059\u3002\u30eb\u30fc\u30c8\u5185\u306e\u6570\u5b57\u3092\u5916\u306b\u51fa\u3059\u3068\u304d\u3001\u5168\u54e1\u304c\u7d20\u56e0\u6570\u5206\u89e3\u3092\u3057\u307e\u3059\u3002<\/p>\n<p>\u305d\u308c\u3067\u306f\u3001\u306a\u305c\u6839\u53f7\u306e\u4e2d\u306e\u6570\u5b57\u3092\u5916\u306b\u51fa\u3059\u5fc5\u8981\u304c\u3042\u308b\u306e\u3067\u3057\u3087\u3046\u304b\u3002\u7406\u7531\u306f\u5358\u7d14\u3067\u3042\u308a\u3001\u305d\u306e\u307b\u3046\u304c\u6570\u5b57\u3092\u7406\u89e3\u3057\u3084\u3059\u3044\u304b\u3089\u3067\u3059\u3002\u4f8b\u3048\u3070\u3001\\(\\sqrt{300}\\)\u306e\u6570\u5b57\u3092\u77ac\u6642\u306b\u7b54\u3048\u308b\u306e\u306f\u96e3\u3057\u3044\u3067\u3059\u3002\u4e00\u65b9\u3067\\(10\\sqrt{3}\\)\u3067\u3042\u308c\u3070\u7c21\u5358\u3067\u3059\u3002<\/p>\n<p>\\(\\sqrt{3}\u22521.73\\)\u3067\u3059\u3002\u3053\u308c\u306e10\u500d\u3067\u3042\u308b\u305f\u3081\u3001\\(10\\sqrt{3}\\)\u306f\u7d0417.3\u306e\u5024\u3060\u3068\u5206\u304b\u308a\u307e\u3059\u3002\u6570\u5b57\u304c\u3069\u3046\u3044\u3046\u610f\u5473\u3092\u3082\u3064\u306e\u304b\u3001\u7406\u89e3\u3059\u308b\u305f\u3081\u306e\u5b66\u554f\u304c\u6570\u5b66\u3067\u3059\u3002\u6570\u5b57\u3092\u5206\u304b\u308a\u3084\u3059\u304f\u3057\u306a\u3051\u308c\u3070\u3044\u3051\u306a\u3044\u305f\u3081\u3001\u30eb\u30fc\u30c8\u5185\u306e\u6570\u5b57\u3092\u5916\u306b\u51fa\u3055\u306a\u3051\u308c\u3070\u3044\u3051\u307e\u305b\u3093\u3002<\/p>\n<h3>\u7d20\u6570\u4ee5\u5916\u306e\u5272\u308a\u7b97\u3092\u3057\u3066\u306f\u3044\u3051\u306a\u3044<\/h3>\n<p>\u306a\u304a\u7d20\u56e0\u6570\u5206\u89e3\u3067\u306f\u3001\u7d20\u6570\u4ee5\u5916\u3067\u5272\u308a\u7b97\u3092\u3057\u3066\u306f\u3044\u3051\u307e\u305b\u3093\u3002\u7d20\u6570\u4ee5\u5916\u306e\u6570\u5b57\u304c\u6df7\u3058\u308b\u3068\u3001\u30eb\u30fc\u30c8\u5185\u306e\u6570\u5b57\u3092\u5916\u306b\u51fa\u305b\u306a\u304f\u306a\u308b\u304b\u3089\u3067\u3059\u3002\u4f8b\u3048\u3070\u3001300\u306e\u7d20\u56e0\u6570\u5206\u89e3\u3092\u3059\u308b\u3068\u304d\u30014\u3067\u5272\u308b\u3068\u3069\u3046\u306a\u308b\u3067\u3057\u3087\u3046\u304b\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-2548\" src=\"https:\/\/hatsudy.com\/jp\/wp-content\/uploads\/2020\/11\/trhes9-1.jpg\" alt=\"\" width=\"422\" height=\"268\" \/><\/p>\n<p>4\u306f2\u3067\u5272\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u305f\u3081\u3001\u7d20\u6570\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u305f\u3060\u30014\u3067\u5272\u3063\u3066\u3057\u307e\u3046\u3068\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u5f0f\u306b\u3057\u3066\u3057\u307e\u3046\u4eba\u304c\u591a\u3044\u3067\u3059\u3002<\/p>\n<ul>\n<li>\\(\\sqrt{300}=\\sqrt{3\u00d74\u00d75^2}\\)<\/li>\n<\/ul>\n<p>\u305d\u306e\u7d50\u679c\u3001\u7b54\u3048\u3092\\(5\\sqrt{12}\\)\u3068\u3057\u3066\u3057\u307e\u3044\u307e\u3059\u3002\u3053\u306e\u7b54\u3048\u306f\u9593\u9055\u3044\u3067\u3059\u3002\u30eb\u30fc\u30c8\u5185\u306e\u6570\u5b57\u3092\u3055\u3089\u306b\u5c0f\u3055\u304f\u3067\u304d\u308b\u304b\u3089\u3067\u3059\u3002<\/p>\n<p>\u7d20\u6570\u3067\u306a\u3044\u6570\u5b57\u306e\u5834\u5408\u30014\u306e\u3088\u3046\u306b\u3001\u4ed6\u306e\u6570\u5b57\u3067\u5272\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u305d\u306e\u7d50\u679c\u3001\u300c\u6700\u3082\u5c0f\u3055\u3044\u6570\u5b57\u3092\u4f7f\u3063\u305f\u639b\u3051\u7b97\u306e\u5f0f\u300d\u306b\u76f4\u3059\u3053\u3068\u304c\u3067\u304d\u307e\u305b\u3093\u3002\u3053\u3046\u3057\u3066\u30eb\u30fc\u30c8\u5185\u306e\u6570\u5b57\u304c\u5927\u304d\u304f\u306a\u3063\u3066\u3057\u307e\u3044\u3001\u8a08\u7b97\u30df\u30b9\u3092\u8d77\u3053\u3057\u307e\u3059\u3002<span style=\"color: #0000ff;\">\u7d20\u56e0\u6570\u5206\u89e3\u3067\u306f\u3001\u5fc5\u305a\u7d20\u6570\u3067\u5272\u308a\u7b97\u3092\u3059\u308b\u3088\u3046\u306b\u3057\u307e\u3057\u3087\u3046\u3002<\/span><\/p>\n<h2>\u30eb\u30fc\u30c8\u540c\u58eb\u306e\u639b\u3051\u7b97\u30fb\u5272\u308a\u7b97\u306e\u65b9\u6cd5\u3092\u5b66\u3076<\/h2>\n<p>\u306a\u304a\u30eb\u30fc\u30c8\u540c\u58eb\u306e\u639b\u3051\u7b97\u30fb\u5272\u308a\u7b97\u3092\u3059\u308b\u3053\u3068\u304c\u983b\u7e41\u306b\u3042\u308a\u307e\u3059\u3002\u305d\u306e\u5834\u5408\u306b\u3064\u3044\u3066\u3082\u3001\u7d20\u56e0\u6570\u5206\u89e3\u3092\u3059\u308b\u3053\u3068\u3067\u3001\u30eb\u30fc\u30c8\u306e\u5916\u306b\u6570\u5b57\u3092\u51fa\u3057\u3084\u3059\u304f\u306a\u308a\u307e\u3059\u3002<\/p>\n<p>\u4f8b\u3048\u3070\u3001\u4ee5\u4e0b\u306f\u3069\u306e\u3088\u3046\u306b\u8a08\u7b97\u3059\u308c\u3070\u3044\u3044\u3067\u3057\u3087\u3046\u304b\u3002<\/p>\n<ul>\n<li>\\(\\sqrt{15}\u00d7\\sqrt{21}\\)<\/li>\n<\/ul>\n<p>15\u3092\u7d20\u56e0\u6570\u5206\u89e3\u3059\u308b\u3068\\(3\u00d75\\)\u3067\u3059\u3002\u307e\u305f\u300121\u3092\u7d20\u56e0\u6570\u5206\u89e3\u3059\u308b\u3068\\(3\u00d77\\)\u3067\u3059\u3002\u305d\u306e\u305f\u3081\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u8a08\u7b97\u3067\u304d\u307e\u3059\u3002<\/p>\n<p>\\(\\sqrt{15}\u00d7\\sqrt{21}\\)<\/p>\n<p>\\(=\\sqrt{3\u00d75}\u00d7\\sqrt{3\u00d77}\\)<\/p>\n<p>\\(=\\color{red}{\\sqrt{3}}\u00d7\\sqrt{5}\u00d7\\color{red}{\\sqrt{3}}\u00d7\\sqrt{7}\\)<\/p>\n<p>\\(=3\u00d7\\sqrt{5\u00d77}\\)<\/p>\n<p>\\(=3\\sqrt{35}\\)<\/p>\n<p>\u639b\u3051\u7b97\u3092\u3059\u308b\u3068\u304d\u3001\\(\\sqrt{15}\\)\u3068\\(\\sqrt{21}\\)\u306b\u306f\u7d20\u56e0\u6570\u5206\u89e3\u3059\u308b\u3053\u3068\u306b\u3088\u3063\u3066\u3001\u305d\u308c\u305e\u308c\u30eb\u30fc\u30c8\u5185\u306b\\(\\sqrt{3}\\)\u304c\u542b\u307e\u308c\u3066\u3044\u308b\u3068\u5206\u304b\u308a\u307e\u3059\u3002<span style=\"color: #0000ff;\">3<sup>2<\/sup>\u306e\u5f62\u306b\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u305f\u3081\u30013\u3092\u30eb\u30fc\u30c8\u306e\u5916\u306b\u51fa\u3059\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/span>\u7d20\u56e0\u6570\u5206\u89e3\u3059\u308b\u3053\u3068\u3067\u3001\u3069\u306e\u6570\u5b57\u3092\u6839\u53f7\u306e\u5916\u306b\u51fa\u305b\u308b\u306e\u304b\u7406\u89e3\u3067\u304d\u307e\u3059\u3002<\/p>\n<p>\u306a\u304a\u3001\u7d2f\u4e57\u3092\u4f5c\u308c\u306a\u3044\u5834\u5408\u306f\u30eb\u30fc\u30c8\u306e\u5916\u306b\u6570\u5b57\u3092\u51fa\u3059\u3053\u3068\u304c\u3067\u304d\u307e\u305b\u3093\u3002\u5148\u307b\u3069\u306e\u8a08\u7b97\u3067\u306f\u3001\u30eb\u30fc\u30c8\u306e\u4e2d\u306f\\(\\sqrt{5\u00d77}=\\sqrt{35}\\)\u3068\u8a08\u7b97\u3057\u3066\u3044\u307e\u3059\u30023\u306f2\u4e57\u304c\u5b58\u5728\u3059\u308b\u3082\u306e\u306e\u30015\u30687\u306f2\u4e57\u3092\u4f5c\u308c\u306a\u3044\u304b\u3089\u3067\u3059\u3002<\/p>\n<h3>\u30eb\u30fc\u30c8\u306e\u7d20\u56e0\u6570\u5206\u89e3\u3092\u6700\u521d\u306b\u884c\u3046<\/h3>\n<p>\u3061\u306a\u307f\u306b\u30eb\u30fc\u30c8\u306e\u639b\u3051\u7b97\u30fb\u5272\u308a\u7b97\u3067\u306f\u3001\u30eb\u30fc\u30c8\u5185\u306e\u6570\u5b57\u3092\u5c0f\u3055\u304f\u3059\u308b\u3053\u3068\u3092\u6700\u521d\u306b\u884c\u3044\u307e\u3057\u3087\u3046\u3002\u639b\u3051\u7b97\u3067\u3082\u5272\u308a\u7b97\u3067\u3082\u3001\u6570\u5b57\u304c\u5c0f\u3055\u3044\u307b\u3069\u8a08\u7b97\u30df\u30b9\u304c\u5c11\u306a\u304f\u306a\u308a\u307e\u3059\u3002\u305d\u306e\u305f\u3081\u3001<span style=\"color: #ff0000;\">\u5e73\u65b9\u6839\u306e\u8a08\u7b97\u3067\u306f\u7d20\u56e0\u6570\u5206\u89e3\u3092\u6700\u521d\u306b\u884c\u3046\u3068\u3044\u3044\u3067\u3059\u3002<\/span><\/p>\n<p>\u4f8b\u3048\u3070\u3001\u4ee5\u4e0b\u306e\u554f\u984c\u306f\u3069\u306e\u3088\u3046\u306b\u3059\u308c\u3070\u8a08\u7b97\u30df\u30b9\u304c\u5c11\u306a\u304f\u306a\u308b\u3067\u3057\u3087\u3046\u304b\u3002<\/p>\n<ul>\n<li>\\(\\sqrt{28}\u00d7\\sqrt{18}\\)<\/li>\n<\/ul>\n<p>\u8a08\u7b97\u65b9\u6cd5\u3068\u3057\u3066\u306f\u3001\u4ee5\u4e0b\u306e2\u901a\u308a\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-2549\" src=\"https:\/\/hatsudy.com\/jp\/wp-content\/uploads\/2020\/11\/trhes10.jpg\" alt=\"\" width=\"600\" height=\"146\" \/><\/p>\n<p>2\u3064\u306e\u8a08\u7b97\u65b9\u6cd5\u3092\u78ba\u8a8d\u3059\u308b\u3068\u3001\u6700\u521d\u306b\u7d20\u56e0\u6570\u5206\u89e3\u3092\u3057\u305f\u307b\u3046\u304c\u8a08\u7b97\u304c\u7c21\u5358\u306b\u306a\u308b\u306e\u306f\u660e\u3089\u304b\u3067\u3059\u300228\u306818\u306e\u639b\u3051\u7b97\u306f\u8907\u96d1\u3067\u3059\u3002\u307e\u305f\u3001504\u306e\u7d20\u56e0\u6570\u5206\u89e3\u3092\u3059\u308b\u306e\u306f\u5927\u5909\u3067\u3059\u3002<\/p>\n<p>\u3053\u306e\u7406\u7531\u304b\u3089\u3001\u639b\u3051\u7b97\u3067\u3082\u5272\u308a\u7b97\u3067\u3082\u5fc5\u305a\u6700\u521d\u306b\u7d20\u56e0\u6570\u5206\u89e3\u3092\u3059\u308b\u3088\u3046\u306b\u3057\u307e\u3057\u3087\u3046\u3002\u305d\u3046\u3059\u308c\u3070\u3001\u8a08\u7b97\u30df\u30b9\u304c\u5c11\u306a\u304f\u306a\u308a\u307e\u3059\u3002<\/p>\n<h2>\u7df4\u7fd2\u554f\u984c\uff1a\u5e73\u65b9\u6839\u306e\u639b\u3051\u7b97\u3068\u5272\u308a\u7b97<\/h2>\n<p><strong>Q1.<\/strong>\u00a0\u6b21\u306e\u8a08\u7b97\u3092\u3057\u307e\u3057\u3087\u3046<\/p>\n<ol style=\"list-style-type: lower-alpha;\">\n<li>\\(2\\sqrt{3}\u00d74\\sqrt{21}\\)<\/li>\n<li class=\"odd\">\\(\\sqrt{15}\u00d7\\sqrt{30}\\)<\/li>\n<li class=\"even\">\\(\\sqrt{75}\u00f72\\sqrt{3}\\)<\/li>\n<li class=\"odd\">\\((3+\\sqrt{5})(3-\\sqrt{5})\\)<\/li>\n<\/ol>\n<p><strong>A1.<\/strong>\u00a0\u89e3\u7b54<\/p>\n<p><strong>(a)<\/strong><\/p>\n<p>\\(2\\sqrt{3}\u00d74\\sqrt{21}\\)<\/p>\n<p>\\(=2\\sqrt{\\color{red}{3}}\u00d74\\sqrt{\\color{red}{3}\u00d77}\\)<\/p>\n<p>\\(=2\u00d74\u00d73\u00d7\\sqrt{7}\\)<\/p>\n<p>\\(=24\\sqrt{7}\\)<\/p>\n<p><strong>(b)<\/strong><\/p>\n<p>\\(\\sqrt{15}\u00d7\\sqrt{30}\\)<\/p>\n<p>\\(=\\sqrt{\\color{red}{3}\u00d7\\color{blue}{5}}\u00d7\\sqrt{2\u00d7\\color{red}{3}\u00d7\\color{blue}{5}}\\)<\/p>\n<p>\\(=3\u00d75\u00d7\\sqrt{2}\\)<\/p>\n<p>\\(=15\\sqrt{2}\\)<\/p>\n<p><strong>(c)<\/strong><\/p>\n<p>\u5272\u308a\u7b97\u304c\u3042\u308b\u5834\u5408\u3001\u5fc5\u305a\u5206\u6570\u306e\u639b\u3051\u7b97\u306b\u76f4\u3059\u3088\u3046\u306b\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n<p>\\(\\sqrt{75}\u00f72\\sqrt{3}\\)<\/p>\n<p>\\(=\\sqrt{3\u00d75\u00d75}\u00d7\\displaystyle\\frac{1}{2\\sqrt{3}}\\)<\/p>\n<p>\\(=5\\color{red}{\\sqrt{3}}\u00d7\\displaystyle\\frac{1}{2\\color{red}{\\sqrt{3}}}\\)<\/p>\n<p>\\(=\\displaystyle\\frac{5}{2}\\)<\/p>\n<p><strong>(d)<\/strong><\/p>\n<p>\u5e73\u65b9\u6839\u306e\u8a08\u7b97\u3067\u306f\u3001\u4e57\u6cd5\u516c\u5f0f\u3092\u5229\u7528\u3059\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002\u4ee5\u4e0b\u306e\u516c\u5f0f\u3067\u3059\u3002<\/p>\n<ul>\n<li>\\((x+a)(x-a)=x^2-a^2\\)<\/li>\n<\/ul>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-2273\" src=\"https:\/\/hatsudy.com\/jp\/wp-content\/uploads\/2020\/11\/wth4.jpg\" alt=\"\" width=\"600\" height=\"176\" \/><\/p>\n<p>\u305d\u3053\u3067\\((x+a)(x-a)=x^2-a^2\\)\u306e\u516c\u5f0f\u3092\u5229\u7528\u3059\u308b\u3053\u3068\u3067\u3001\u30eb\u30fc\u30c8\u306e\u8a08\u7b97\u3092\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n<p>\\((3+\\sqrt{5})(3-\\sqrt{5})\\)<\/p>\n<p>\\(=3^2-(\\sqrt{5})^2\\)<\/p>\n<p>\\(=9-5\\)<\/p>\n<p>\\(=4\\)<\/p>\n<h2>\u6839\u53f7\u306e\u639b\u3051\u7b97\u3068\u7d20\u6570\u8a08\u7b97\u3092\u884c\u3046<\/h2>\n<p>\u5e73\u65b9\u6839\u3067\u306f\u639b\u3051\u7b97\u3068\u5272\u308a\u7b97\u3092\u3059\u308b\u3053\u3068\u304c\u983b\u7e41\u306b\u3042\u308a\u307e\u3059\u3002\u5e73\u65b9\u6839\u540c\u58eb\u306f\u639b\u3051\u7b97\u3084\u5272\u308a\u7b97\u3092\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u901a\u5e38\u306e\u639b\u3051\u7b97\u3068\u3084\u308a\u65b9\u306f\u540c\u3058\u3067\u3059\u3002\u305f\u3060\u3001\u6574\u6570\u3068\u30eb\u30fc\u30c8\u3092\u5206\u3051\u3066\u639b\u3051\u7b97\u307e\u305f\u306f\u5272\u308a\u7b97\u3092\u3059\u308b\u30eb\u30fc\u30eb\u3092\u7406\u89e3\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n<p>\u306a\u304a\u3001<span style=\"color: #ff0000;\">\u5e73\u65b9\u6839\u306e\u8a08\u7b97\u3067\u306f\u5fc5\u305a\u7d20\u56e0\u6570\u5206\u89e3\u3092\u3057\u306a\u3051\u308c\u3070\u3044\u3051\u307e\u305b\u3093\u3002<\/span>\u6574\u6570\u3092\u639b\u3051\u7b97\u306e\u5f0f\u306b\u76f4\u3059\u306e\u3067\u3059\u3002\u7d20\u56e0\u6570\u5206\u89e3\u3092\u3059\u308b\u3053\u3068\u3067\u3001\u30eb\u30fc\u30c8\u5185\u306e\u6570\u5b57\u3092\u5916\u306b\u51fa\u3059\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<p>\u307e\u305f\u6700\u521d\u306b\u7d20\u56e0\u6570\u5206\u89e3\u3092\u3059\u308b\u3053\u3068\u3067\u3001\u5e73\u65b9\u6839\u306e\u8a08\u7b97\u304c\u7c21\u5358\u306b\u306a\u308a\u307e\u3059\u3002\u7d20\u56e0\u6570\u5206\u89e3\u3092\u6700\u521d\u306b\u3059\u308b\u307b\u3046\u304c\u8a08\u7b97\u30df\u30b9\u306f\u5c11\u306a\u304f\u306a\u308b\u306e\u3067\u3059\u3002\u3069\u306e\u3088\u3046\u306b\u3059\u308c\u3070\u8a08\u7b97\u30df\u30b9\u304c\u5c11\u306a\u304f\u306a\u308b\u306e\u304b\u306b\u3064\u3044\u3066\u3001\u305d\u306e\u3084\u308a\u65b9\u3082\u542b\u3081\u3066\u7406\u89e3\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n<p>\u30eb\u30fc\u30c8\u306e\u639b\u3051\u7b97\u3084\u5272\u308a\u7b97\u3092\u3059\u308b\u3068\u304d\u3001\u306a\u305c\u305d\u306e\u3088\u3046\u306a\u8a08\u7b97\u306b\u306a\u308b\u306e\u304b\u306b\u3064\u3044\u3066\u3001\u65b9\u6cd5\u3060\u3051\u3067\u306a\u304f\u7406\u7531\u3082\u89e3\u8aac\u3057\u307e\u3057\u305f\u3002\u3053\u308c\u3089\u3092\u5b66\u3076\u3053\u3068\u3067\u3001\u6839\u53f7\u3092\u542b\u3080\u6570\u5b66\u306e\u8a08\u7b97\u304c\u53ef\u80fd\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5e73\u65b9\u6839\u3067\u306f\u639b\u3051\u7b97\u3068\u5272\u308a\u7b97\u3092\u5b66\u3073\u307e\u3059\u3002\u4e00\u822c\u7684\u306b\u6570\u5b66\u3067\u306f\u3001\u6700\u521d\u306b\u8db3\u3057\u7b97\u3068\u5f15\u304d\u7b97\u3092\u5b66\u3073\u307e\u3059\u3002\u305f\u3060\u5e73\u65b9\u6839\u306b\u3064\u3044\u3066\u306f\u3001\u639b\u3051\u7b97\u3068\u5272\u308a\u7b97\u306e\u307b\u3046\u304c\u7c21\u5358\u3067\u3059\u3002\u6839\u53f7\uff08\u30eb\u30fc\u30c8\uff09\u306e\u6570\u5b57\u3092\u305d\u306e\u307e\u307e\u639b\u3051\u7b97\u3059\u308c\u3070\u3044\u3044\u304b\u3089\u3067\u3059\u3002 \u305f\u3060\u3001\u5e73\u65b9\u6839\u306e\u639b\u3051\u7b97\u306b [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":2561,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":{"0":"post-2502","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-j-math"},"_links":{"self":[{"href":"https:\/\/hatsudy.com\/jp\/wp-json\/wp\/v2\/posts\/2502","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/hatsudy.com\/jp\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/hatsudy.com\/jp\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/hatsudy.com\/jp\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/hatsudy.com\/jp\/wp-json\/wp\/v2\/comments?post=2502"}],"version-history":[{"count":15,"href":"https:\/\/hatsudy.com\/jp\/wp-json\/wp\/v2\/posts\/2502\/revisions"}],"predecessor-version":[{"id":8237,"href":"https:\/\/hatsudy.com\/jp\/wp-json\/wp\/v2\/posts\/2502\/revisions\/8237"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/hatsudy.com\/jp\/wp-json\/wp\/v2\/media\/2561"}],"wp:attachment":[{"href":"https:\/\/hatsudy.com\/jp\/wp-json\/wp\/v2\/media?parent=2502"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/hatsudy.com\/jp\/wp-json\/wp\/v2\/categories?post=2502"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/hatsudy.com\/jp\/wp-json\/wp\/v2\/tags?post=2502"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}