{"id":287,"date":"2024-05-20T14:53:37","date_gmt":"2024-05-20T05:53:37","guid":{"rendered":"https:\/\/keiosg.com\/chuugakubu\/?p=287"},"modified":"2024-05-20T14:53:37","modified_gmt":"2024-05-20T05:53:37","slug":"%e9%96%a2%e6%95%b0-3","status":"publish","type":"post","link":"https:\/\/keiosg.com\/chuugakubu\/archives\/287","title":{"rendered":"\u95a2\u6570"},"content":{"rendered":"

\u5e73\u621023\u5e74\u3000\u6176\u61c9\u7fa9\u587e\u5fd7\u6728\u9ad8\u6821<\/p>\n

\u56f3\u306e\u3088\u3046\u306b\u3001\u653e\u7269\u7ddaC\uff1a\"y=x^2\"\u3068\u3001\"x\"\u8ef8\u306e\u6b63\u306e\u90e8\u5206\u306830\u00b0\u306e\u89d2\u3092\u306a\u3057\u3066\u4ea4\u308f\u308b\u76f4\u7dda\u2113\u304c\u30012\u70b9A\u3001B\u3067\u4ea4\u308f\u3063\u3066\u3044\u308b\u3002\u70b9A\u306e\"x\"\u5ea7\u6a19\u3092\"a(a>0)\"\u3068\u3059\u308b\u3068\u304d\u3001\u6b21\u306e\u554f\u3044\u306b\u7b54\u3048\u3088\u3002
\n\uff081\uff09\u70b9B\u306e\"x\"\u5ea7\u6a19\u3092\"a\"\u3092\u7528\u3044\u3066\u8868\u305b\u3002
\n\uff082\uff09\u70b9P\u3092\u3001\u76f4\u7ddaAB\u3068\u76f4\u7ddaAP\u304c\u76f4\u4ea4\u3057\u3001\u70b9A\u3068\u91cd\u306a\u3089\u306a\u3044\u3088\u3046\u306b\u3001\u653e\u7269\u7ddaC\u4e0a\u306b\u3068\u308b\u3002\u2220ABP\uff1d45\u00b0\u3068\u306a\u308b\u3068\u304d\u3001\"a\"\u306e\u5024\u3092\u6c42\u3081\u3088\u3002<\/p>\n

\"\"<\/p>\n

\u3010\u89e3\u8aac\u3068\u89e3\u7b54\u3011
\n\uff081\uff09\u76f4\u7dda\u2113\u306e\u50be\u304d\u306f\"-\frac{1}{\sqrt{3}}\"\u306b\u306a\u308b\u306e\u3067\u3001A\u304c\"(a,a^2)\"\u3092\u901a\u308b\u306e\u3067\u3001\u76f4\u7dda\u2113\u306e\u65b9\u7a0b\u5f0f\u306f<\/p>\n

  <\/span>   <\/span>\"\[<\/p>\n

\u3068\u306a\u308b\u304b\u3089<\/p>\n

  <\/span>   <\/span>\"\[<\/p>\n

\u304b\u3089<\/p>\n

  <\/span>   <\/span>\"\[<\/p>\n

\u3057\u305f\u304c\u3063\u3066\"a+b=-\frac{\sqrt{3}}{3}\"\u3088\u308a\u3001\"b=-a-\frac{\sqrt{3}}{3}\"
\n\uff08\u7b54\u3048\uff09\"-a-\frac{\sqrt{3}}{3}\"<\/p>\n

\uff082\uff09
\n\"\"<\/p>\n

P\u306e\"x\"\u5ea7\u6a19\u304c\"a\"\u3088\u308a\u5927\u304d\u3044\u3068\u304d\u306f\u3001\u56f31\u3001\u5c0f\u3055\u3044\u6642\u306f\u56f32\u306b\u306a\u308a\u307e\u3059\u3002
\n\u3044\u305a\u308c\u306e\u5834\u5408\u3082
\n\u25b3ABm\u3068\u25b3AP\uff4e\u306f\u5408\u540c\u306a\u4e09\u89d2\u5f62\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n

\u56f31\u306e\u3068\u304d\u3001\u76f4\u7ddaAP\u306e\u50be\u304d\u306f\"\sqrt{3}\"\u306b\u306a\u308b\u306e\u3067\u3001\u76f4\u7ddaAP\u306e\u65b9\u7a0b\u5f0f\u3092<\/p>\n

  <\/span>   <\/span>\"\[<\/p>\n

\u3068\u3059\u308b\u3068\u3001\u3053\u308c\u304c\"(a,a^2)\"\u3092\u901a\u308b\u306e\u3067\u3001\"a^2=\sqrt{3}a+k\"\u304b\u3089\"ｋ=a^2-\sqrt{3}a\"\u306a\u306e\u3067\u3001<\/p>\n

  <\/span>   <\/span>\"\[<\/p>\n

  <\/span>   <\/span>\"\[<\/p>\n

\u304b\u3089P\u306e\uff58\u5ea7\u6a19\u306f\"\sqrt{3}-a\"<\/p>\n

\u56f31\u306e\u3068\u304d\u3001\"nA=\sqrt{3}-2a\", <\/p>\n

\u56f32\u306e\u3068\u304d\u3001\"An=2a-\sqrt{3}\"<\/p>\n

nA\uff1dBm\u304b\u3089\u3001\"Bm=(-a-\frac{\sqrt{3}}{3})^2-a^2=\frac{2\sqrt{3}}{3}a+\frac{1}{3}\"<\/p>\n

\u56f31\u306e\u5834\u5408\u306f\u3001\"\sqrt{3}-2a=\frac{2\sqrt{3}}{3}a+\frac{1}{3}\"<\/p>\n

\"a=\frac{5\sqrt{3}-6}{6}\"<\/p>\n

\u56f32\u306e\u3068\u304d\u3001\"2a-\sqrt{3}=\frac{2\sqrt{3}}{3}a+\frac{1}{3}\"<\/p>\n

\"a=\frac{5\sqrt{3}+6}{6}\"<\/p>\n

\uff08\u7b54\u3048\uff09\"\frac{5\sqrt{3}-6}{6}\"\u3001\"\frac{5\sqrt{3}+6}{6}\"<\/p>\n","protected":false},"excerpt":{"rendered":"

\u5e73\u621023\u5e74\u3000\u6176\u61c9\u7fa9\u587e\u5fd7\u6728\u9ad8\u6821 \u56f3\u306e\u3088\u3046\u306b\u3001\u653e\u7269\u7ddaC\uff1a\u3068\u3001\u8ef8\u306e\u6b63\u306e\u90e8\u5206\u306830\u00b0\u306e\u89d2\u3092\u306a\u3057\u3066\u4ea4\u308f\u308b\u76f4\u7dda\u2113\u304c\u30012\u70b9A\u3001B\u3067\u4ea4\u308f\u3063\u3066\u3044\u308b\u3002\u70b9A\u306e\u5ea7\u6a19\u3092\u3068\u3059\u308b\u3068\u304d\u3001\u6b21\u306e\u554f\u3044\u306b\u7b54\u3048\u3088\u3002 \uff081\uff09\u70b9B\u306e\u5ea7\u6a19\u3092\u3092\u7528\u3044\u3066\u8868\u305b\u3002 \uff082\uff09\u70b9P\u3092 […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[11,6],"tags":[],"class_list":["post-287","post","type-post","status-publish","format-standard","hentry","category-11","category-6"],"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/keiosg.com\/chuugakubu\/wp-json\/wp\/v2\/posts\/287","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/keiosg.com\/chuugakubu\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/keiosg.com\/chuugakubu\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/keiosg.com\/chuugakubu\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/keiosg.com\/chuugakubu\/wp-json\/wp\/v2\/comments?post=287"}],"version-history":[{"count":43,"href":"https:\/\/keiosg.com\/chuugakubu\/wp-json\/wp\/v2\/posts\/287\/revisions"}],"predecessor-version":[{"id":334,"href":"https:\/\/keiosg.com\/chuugakubu\/wp-json\/wp\/v2\/posts\/287\/revisions\/334"}],"wp:attachment":[{"href":"https:\/\/keiosg.com\/chuugakubu\/wp-json\/wp\/v2\/media?parent=287"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/keiosg.com\/chuugakubu\/wp-json\/wp\/v2\/categories?post=287"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/keiosg.com\/chuugakubu\/wp-json\/wp\/v2\/tags?post=287"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}