{"id":207,"date":"2011-12-02T23:21:57","date_gmt":"2011-12-02T14:21:57","guid":{"rendered":"http:\/\/roundown.main.jp\/nyushi\/?p=207"},"modified":"2021-09-14T12:55:34","modified_gmt":"2021-09-14T03:55:34","slug":"iks200901","status":"publish","type":"post","link":"https:\/\/www.roundown.net\/nyushi\/iks200901\/","title":{"rendered":"\u533b\u79d1\u6b6f\u79d1\u59272009\uff1a\u7b2c1\u554f"},"content":{"rendered":"<hr \/>\n<p>\u5ea7\u6a19\u5e73\u9762\u307e\u305f\u306f\u5ea7\u6a19\u7a7a\u9593\u306b\u304a\u3044\u3066, \u5ea7\u6a19\u6210\u5206\u304c\u3059\u3079\u3066\u6574\u6570\u3067\u3042\u308b\u70b9\u3092\u683c\u5b50\u70b9\u3068\u3044\u3046.\r\n\u4ee5\u4e0b\u306e\u5404\u554f\u3044\u306b\u7b54\u3048\u3088.<\/p>\r\n<ol>\r\n<li><p><strong>(1)<\/strong>\u3000\\(C _ 1\\) \u3092\u5ea7\u6a19\u5e73\u9762\u4e0a\u306e\u534a\u5f84 \\(0.5\\) \u306e\u5186\u3068\u3059\u308b. \\(C _ 1\\) \u304c\u5185\u90e8\u306b\u683c\u5b50\u70b9\u3092\u542b\u307e\u306a\u3044\u3068\u304d, \\(C _ 1\\) \u306e\u4e2d\u5fc3 \\((x, y)\\) \u304c\u5b58\u5728\u3057\u3046\u308b\u9818\u57df\u3092 \\(0 \\leqq x \\leqq 2\\) , \\(0 \\leqq y \\leqq 2\\) \u306e\u7bc4\u56f2\u3067\u56f3\u793a\u305b\u3088.<\/p><\/li>\r\n<li><p><strong>(2)<\/strong>\u3000\\(C _ 2\\) \u3092\u5ea7\u6a19\u5e73\u9762\u4e0a\u306e\u534a\u5f84 \\(0.75\\) \u306e\u5186\u3068\u3059\u308b. \\(C _ 2\\) \u306f\u4e2d\u5fc3\u3092\u3069\u306e\u3088\u3046\u306a\u4f4d\u7f6e\u306b\u79fb\u52d5\u3055\u305b\u3066\u3082\u5fc5\u305a\u5185\u90e8\u306b\u683c\u5b50\u70b9\u3092\u542b\u3080\u3053\u3068\u3092\u793a\u305b.<\/p><\/li>\r\n<li><p><strong>(3)<\/strong>\u3000\\(S\\) \u3092\u5ea7\u6a19\u7a7a\u9593\u5185\u306e\u534a\u5f84 \\(r\\) \u306e\u7403\u3068\u3059\u308b. \\(S\\) \u306f\u534a\u5f84\u3092\u5909\u5316\u3055\u305b\u305a\u306b\u4e2d\u5fc3\u3092\u3069\u306e\u3088\u3046\u306a\u4f4d\u7f6e\u306b\u79fb\u52d5\u3055\u305b\u3066\u3082, \u5fc5\u305a\u5185\u90e8\u306b\u683c\u5b50\u70b9\u3092\u542b\u3080\u3068\u3059\u308b. \u3053\u306e\u3068\u304d \\(r\\) \u306e\u3068\u308a\u3046\u308b\u5024\u306e\u7bc4\u56f2\u3092\u6c42\u3081\u3088. \u3053\u3053\u3067 \\(S\\) \u306e\u5185\u90e8\u3068\u306f, \\(S\\) \u304b\u3089\u306e\u8ddd\u96e2\u304c \\(r\\) \u3088\u308a\u5c0f\u3055\u3044\u70b9\u5168\u4f53\u304b\u3089\u306a\u308b\u96c6\u5408\u306e\u3053\u3068\u3067\u3042\u308b.<\/p><\/li>\r\n<\/ol>\r\n<hr \/>\r\n<!--more-->\r\n<h4>\u3010 \u89e3 \u7b54 \u3011<\/h4>\r\n<p><strong>(1)<\/strong><\/p>\r\n<p>\\(C _ 1\\) \u304c\u5185\u90e8\u306b\u683c\u5b50\u70b9\u3092\u542b\u3080\u3068\u304d, \\(C _ 1\\) \u306e\u4e2d\u5fc3\u306f, \u683c\u5b50\u70b9\u3092\u4e2d\u5fc3\u3068\u3059\u308b\u534a\u5f84 \\(0.5\\) \u306e\u5186\u306e\u5185\u90e8\u3068\u306a\u308b.<br \/>\r\n\u3088\u3063\u3066\u6c42\u3081\u308b\u9818\u57df\u306f, \u683c\u5b50\u70b9\u3092\u4e2d\u5fc3\u3068\u3059\u308b\u534a\u5f84 \\(0.5\\) \u306e\u5186\u306e\u5916\u90e8\u3067, \u4e0b\u56f3\u659c\u7dda\u90e8\uff08\u5883\u754c\u3092\u542b\u3080\uff09<\/p>\r\n<img decoding=\"async\" src=\"\/\/www.roundown.net\/nyushi\/wp-content\/uploads\/ikashika_200901_01.png\" alt=\"\" title=\"ikashika_200901_01\" class=\"aligncenter size-full\" \/>\r\n<p><strong>(2)<\/strong><\/p>\r\n<p><strong>(1)<\/strong> \u3068\u540c\u69d8\u306b\u8003\u3048\u308b\u3068, \\(C _ 2\\) \u304c\u5185\u90e8\u306b\u683c\u5b50\u70b9\u3092\u542b\u307e\u306a\u3044\u9818\u57df\u306f, \u300c \u683c\u5b50\u70b9\u3092\u4e2d\u5fc3\u3068\u3057\u305f\u534a\u5f84 \\(0.75\\) \u306e\u5186\u306e\u5916\u90e8 \u300d ... [A] \u3068\u306a\u308b.<br \/>\r\n\u3057\u304b\u3057, \u683c\u5b50\u70b9\u306b\u56f2\u307e\u308c\u305f \\(1\\) \u8fba\u306e\u9577\u3055 \\(1\\) \u306e\u6b63\u65b9\u5f62\u3092\u8003\u3048\u305f\u3068\u304d, \u5bfe\u89d2\u7dda\u306e\u9577\u3055 \\(\\sqrt{2}\\) \u306b\u5bfe\u3057\u3066\r\n\\[\r\n\\sqrt{2} \\lt 2 \\cdot 0.75 = 1.5\n\\]\r\n\u306a\u306e\u3067, [A] \u306e\u3088\u3046\u306a\u9818\u57df\u306f\u5b58\u5728\u3057\u306a\u3044.<br \/>\r\n\u3088\u3063\u3066, \u984c\u610f\u306f\u793a\u3055\u308c\u305f.<\/p>\r\n<p><strong>(3)<\/strong><\/p>\r\n<p><strong>(2)<\/strong> \u3068\u540c\u69d8\u306b\u8003\u3048\u308b.<br \/>\r\n\\(S\\) \u304c\u5185\u90e8\u306b\u683c\u5b50\u70b9\u3092\u542b\u307e\u306a\u3044\u9818\u57df\u306f, \u300c \u683c\u5b50\u70b9\u3092\u4e2d\u5fc3\u3068\u3057\u305f\u534a\u5f84 \\(r\\) \u306e\u7403\u306e\u5916\u90e8 \u300d ... [B] \u3068\u306a\u308b.<br \/>\r\n\u683c\u5b50\u70b9\u306b\u56f2\u307e\u308c\u305f \\(1\\) \u8fba\u306e\u9577\u3055 \\(1\\) \u306e\u7acb\u65b9\u4f53\u306b, \u9818\u57df [B] \u304c\u5b58\u5728\u3057\u306a\u3044\u6761\u4ef6\u306f, \u7acb\u65b9\u4f53\u306e\u5bfe\u89d2\u7dda\u306e\u9577\u3055\u306b\u7740\u76ee\u3057\u3066\r\n\\[\\begin{gather}\r\n\\sqrt{3} \\lt 2r \\\\\r\n\\text{\u2234} \\quad \\underline{r \\gt \\dfrac{\\sqrt{3}}{2}}\n\\end{gather}\\]\r\n","protected":false},"excerpt":{"rendered":"\u5ea7\u6a19\u5e73\u9762\u307e\u305f\u306f\u5ea7\u6a19\u7a7a\u9593\u306b\u304a\u3044\u3066, \u5ea7\u6a19\u6210\u5206\u304c\u3059\u3079\u3066\u6574\u6570\u3067\u3042\u308b\u70b9\u3092\u683c\u5b50\u70b9\u3068\u3044\u3046. \u4ee5\u4e0b\u306e\u5404\u554f\u3044\u306b\u7b54\u3048\u3088. (1)\u3000\\(C _ 1\\) \u3092\u5ea7\u6a19\u5e73\u9762\u4e0a\u306e\u534a\u5f84 \\(0.5\\) \u306e\u5186\u3068\u3059\u308b. \\(C _ 1\\) \u304c\u5185\u90e8\u306b\u683c\u5b50\u70b9\u3092\u542b &hellip; <a href=\"https:\/\/www.roundown.net\/nyushi\/iks200901\/\">\u7d9a\u304d\u3092\u8aad\u3080 <span class=\"meta-nav\">&rarr;<\/span><\/a>","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"inline_featured_image":false,"footnotes":""},"categories":[27],"tags":[145,15],"class_list":["post-207","post","type-post","status-publish","format-standard","hentry","category-ikashika_2009","tag-ikashika","tag-15"],"_links":{"self":[{"href":"https:\/\/www.roundown.net\/nyushi\/wp-json\/wp\/v2\/posts\/207","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.roundown.net\/nyushi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.roundown.net\/nyushi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.roundown.net\/nyushi\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.roundown.net\/nyushi\/wp-json\/wp\/v2\/comments?post=207"}],"version-history":[{"count":0,"href":"https:\/\/www.roundown.net\/nyushi\/wp-json\/wp\/v2\/posts\/207\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.roundown.net\/nyushi\/wp-json\/wp\/v2\/media?parent=207"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.roundown.net\/nyushi\/wp-json\/wp\/v2\/categories?post=207"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.roundown.net\/nyushi\/wp-json\/wp\/v2\/tags?post=207"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}