{"id":2013,"date":"2021-12-05T19:24:51","date_gmt":"2021-12-05T10:24:51","guid":{"rendered":"https:\/\/www.roundown.net\/nyushi\/?p=2013"},"modified":"2021-12-05T19:24:51","modified_gmt":"2021-12-05T10:24:51","slug":"thr202103","status":"publish","type":"post","link":"https:\/\/www.roundown.net\/nyushi\/thr202103\/","title":{"rendered":"\u6771\u5317\u5927\u7406\u7cfb2021\uff1a\u7b2c3\u554f"},"content":{"rendered":"<hr \/>\n<p>\u6b63\u516b\u89d2\u5f62 \\(\\text{A}{} _ {1} \\text{A}{} _ {2} \\cdots \\text{A}{} _ {8}\\) \u306b\u3064\u3044\u3066, \u4ee5\u4e0b\u306e\u554f\u3044\u306b\u7b54\u3048\u3088.<\/p>\r\n<ol>\r\n<li><p><strong>(1)<\/strong>\u3000\\(3\\) \u500b\u306e\u9802\u70b9\u3092\u7d50\u3093\u3067\u3067\u304d\u308b\u4e09\u89d2\u5f62\u306e\u3046\u3061, \u76f4\u89d2\u4e09\u89d2\u5f62\u3067\u3042\u308b\u3082\u306e\u306e\u500b\u6570\u3092\u6c42\u3081\u3088.<\/p><\/li>\r\n<li><p><strong>(2)<\/strong>\u3000\\(3\\) \u500b\u306e\u9802\u70b9\u3092\u7d50\u3093\u3067\u3067\u304d\u308b\u4e09\u89d2\u5f62\u306e\u3046\u3061, \u76f4\u89d2\u4e09\u89d2\u5f62\u3067\u3082\u4e8c\u7b49\u8fba\u4e09\u89d2\u5f62\u3067\u3082\u306a\u3044\u3082\u306e\u306e\u500b\u6570\u3092\u6c42\u3081\u3088.<\/p><\/li>\r\n<li><p><strong>(3)<\/strong>\u3000\\(4\\) \u500b\u306e\u9802\u70b9\u3092\u7d50\u3093\u3067\u3067\u304d\u308b\u56db\u89d2\u5f62\u306e\u3046\u3061, \u6b21\u306e\u6761\u4ef6 <strong>(\uff0a)<\/strong> \u3092\u6e80\u305f\u3059\u3082\u306e\u306e\u500b\u6570\u3092\u6c42\u3081\u3088.<\/p>\r\n<ol>\r\n<li><strong>(\uff0a)<\/strong>\u3000\u56db\u89d2\u5f62\u306e \\(4\\) \u500b\u306e\u9802\u70b9\u304b\u3089 \\(3\\) \u70b9\u3092\u9078\u3093\u3067\u76f4\u89d2\u4e09\u89d2\u5f62\u3092\u4f5c\u308c\u308b.<\/li>\r\n<\/ol><\/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>\u6b63\u516b\u89d2\u5f62\u306f\u5186\u306b\u5185\u63a5\u3059\u308b\u306e\u3067, \u9078\u3093\u3060 \\(3\\) \u70b9\u306b, \u5411\u304b\u3044\u5408\u3046\u9802\u70b9\u306e\u7d44\u304c\u542b\u307e\u308c\u3066\u3044\u308c\u3070, \u76f4\u89d2\u4e09\u89d2\u5f62\u306b\u306a\u308b.<br \/>\r\n\u3088\u3063\u3066, \u5411\u304b\u3044\u5408\u3046 \\(4\\) \u7d44\u306e\u9802\u70b9\u3068, \u4ed6\u306e \\(6\\) \u70b9\u304b\u3089 \\(1\\) \u3064\u3092\u9078\u3079\u3070\u3088\u3044\u306e\u3067, \u6c42\u3081\u308b\u500b\u6570\u306f\r\n\\[\r\n4 \\cdot 6 = \\underline{24}\r\n\\]\r\n<p><strong>(2)<\/strong><\/p>\r\n<p>\u4e8c\u7b49\u8fba\u4e09\u89d2\u5f62\u306b\u306a\u308b\u306e\u306f, \\(1\\) \u3064\u306e\u9802\u70b9\u3092\u6c7a\u3081\u3066, \u5e95\u89d2\u3068\u306a\u308b \\(3\\) \u7d44\u306e\u9802\u70b9\u3092\u9078\u3079\u3070\u3088\u304f, \u305d\u306e\u500b\u6570\u306f\r\n\\[\r\n8 \\cdot 3 = 24\r\n\\]\r\n\\(3\\) \u7d44\u306e\u3046\u3061\u306e \\(1\\) \u7d44\u306f\u76f4\u89d2\u4e8c\u7b49\u8fba\u4e09\u89d2\u5f62\u3068\u306a\u308a, \u305d\u306e\u500b\u6570\u306f \\(8\\) .<br \/>\r\n\u4e09\u89d2\u5f62\u306f\u5168\u90e8\u3067\r\n\\[\r\n{} _ {8} \\text{C}{} _ {3} = \\dfrac{8 \\cdot 7 \\cdot 6}{3 !} = 56 \\ \\text{\u500b}\r\n\\]\r\n\u3042\u308b\u306e\u3067, <strong>(1)<\/strong> \u306e\u7d50\u679c\u3082\u7528\u3044\u3066, \u6c42\u3081\u308b\u500b\u6570\u306f\r\n\\[\r\n56 -24 -24 +8 = \\underline{16}\r\n\\]\r\n<p><strong>(3)<\/strong><\/p>\r\n<p>\\(4\\) \u70b9\u306b, \u5411\u304b\u3044\u5408\u3046\u89d2\u306e\u7d44\u304c\u542b\u307e\u308c\u3066\u3044\u308b\u3068, \u6761\u4ef6\u3092\u307f\u305f\u3059.<br \/>\r\n\u6761\u4ef6\u3092\u307f\u305f\u3055\u306a\u3044\u3082\u306e\u3092\u8003\u3048\u308b\u3068, \u5411\u304b\u3044\u5408\u3046 \\(4\\) \u7d44\u306e\u70b9\u304b\u3089 \\(1\\) \u3064\u305a\u3064\u9078\u3079\u3070\u3088\u3044\u306e\u3067\r\n\\[\r\n2^4 = 16 \\ \\text{\u500b}\r\n\\]\r\n\u56db\u89d2\u5f62\u306f\u5168\u90e8\u3067\r\n\\[\r\n{} _ {8} \\text{C}{} _ {4} = \\dfrac{8 \\cdot 7 \\cdot 6 \\cdot 5}{4 !} = 70 \\ \\text{\u500b}\r\n\\]\r\n\u3042\u308b\u306e\u3067, \u6c42\u3081\u308b\u500b\u6570\u306f\r\n\\[\r\n70 -16 = \\underline{54}\r\n\\]\r\n","protected":false},"excerpt":{"rendered":"\u6b63\u516b\u89d2\u5f62 \\(\\text{A}{} _ {1} \\text{A}{} _ {2} \\cdots \\text{A}{} _ {8}\\) \u306b\u3064\u3044\u3066, \u4ee5\u4e0b\u306e\u554f\u3044\u306b\u7b54\u3048\u3088. (1)\u3000\\(3\\) \u500b\u306e\u9802\u70b9\u3092\u7d50\u3093\u3067\u3067\u304d\u308b\u4e09\u89d2\u5f62\u306e\u3046 &hellip; <a href=\"https:\/\/www.roundown.net\/nyushi\/thr202103\/\">\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":[175],"tags":[148,165],"class_list":["post-2013","post","type-post","status-publish","format-standard","hentry","category-tohoku_r_2021","tag-tohoku_r","tag-165"],"_links":{"self":[{"href":"https:\/\/www.roundown.net\/nyushi\/wp-json\/wp\/v2\/posts\/2013","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=2013"}],"version-history":[{"count":0,"href":"https:\/\/www.roundown.net\/nyushi\/wp-json\/wp\/v2\/posts\/2013\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.roundown.net\/nyushi\/wp-json\/wp\/v2\/media?parent=2013"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.roundown.net\/nyushi\/wp-json\/wp\/v2\/categories?post=2013"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.roundown.net\/nyushi\/wp-json\/wp\/v2\/tags?post=2013"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}