{"id":1426,"date":"2015-11-29T15:00:58","date_gmt":"2015-11-29T06:00:58","guid":{"rendered":"http:\/\/math.co.jp\/blog\/?p=1426"},"modified":"2015-12-07T18:06:55","modified_gmt":"2015-12-07T09:06:55","slug":"%e9%ab%98%e6%a0%a1%e6%95%b0%e5%ad%a6%e3%81%ae%e4%bc%bc%e3%81%a6%e9%9d%9e%e3%81%aa%e3%82%8b%e5%95%8f%e9%a1%8c%e3%81%ab%e5%af%be%e3%81%97%e6%b7%b1%e3%81%84%e6%84%8f%e8%ad%98%e3%82%92%e6%8c%81%e3%81%a8-4","status":"publish","type":"post","link":"https:\/\/math.co.jp\/blog\/?p=1426","title":{"rendered":"\u9ad8\u6821\u6570\u5b66\u306e\u4f3c\u3066\u975e\u306a\u308b\u554f\u984c\u306b\u5bfe\u3057\u6df1\u3044\u610f\u8b58\u3092\u6301\u3068\u3046 (3)\u3000- \u89e3\u7b54\u7de8 1 –"},"content":{"rendered":"

(1) A, B, C \u304c\u3082\u3089\u3046\u30dc\u30fc\u30eb\u306e\u500b\u6570\u3092 \\(x\\), \\(y\\), \\(z\\) \u3068\u304a\u304d\u307e\u3059\u3002\u3053\u306e\u3068\u304d,
\n\u3000\u3000\u3000\\(x+y+z=15\\), \\(x\\geqq 1\\), \\(y\\geqq 2\\), \\(z\\geqq 2\\) <\/span>
\n\u304c\u6210\u308a\u7acb\u3061\u307e\u3059. \u3053\u308c\u3092\u6e80\u305f\u3059\u6574\u6570 \\(x\\), \\(y\\), \\(z\\) \u306e\u7d44\u306e\u500b\u6570\u3092\u6c42\u3081\u308c\u3070\u3088\u3044\u306e\u3067\u3059\u304c, \\(x\\), \\(y\\), \\(z\\) \u306b\u3088\u3063\u3066\u6761\u4ef6\u304c\u7570\u306a\u308b\u306e\u3067\u6b21\u306e\u3088\u3046\u306b\u5de5\u592b\u3057\u307e\u3059\u3002
\n\u3000\u307e\u305a\u6700\u521d\u306b A \u306b 1 \u500b, B \u306b 2 \u500b, C \u306b 3 \u500b\u4e0e\u3048\u3066\u304a\u304d, \u6b8b\u308a 9 \u500b\u3092 A, B, C \u306b\u5206\u914d\u3057\u307e\u3059\u3002\u6b8b\u308a 9 \u500b\u306e\u5206\u914d\u306e\u65b9\u6cd5\u306f,
\n\u3000\u3000\\(x+y+z=9\\), \\(x\\geqq 0\\), \\(y\\geqq 0\\), \\(z\\geqq 0\\) <\/span>
\n\u6e80\u305f\u3059 \\(x\\), \\(y\\), \\(z\\) \u306e\u7d44\u306e\u500b\u6570\u3060\u3051\u3042\u308a\u307e\u3059\u304c, \u3053\u308c\u306f, \u25cb \u3092 9 \u500b\u4e26\u3079\u305d\u308c\u3092 2 \u3064\u306e | \u3067\u4ed5\u5207\u308b\u65b9\u6cd5\u3060\u3051\u3042\u308a\u307e\u3059\u306e\u3067,
\n\u3000\u3000\\(\\displaystyle\\frac{(9+2)!}{9!\\cdot 2!}=\\frac{11\\cdot 10}{2\\cdot 1}=55\\) (\u901a\u308a) <\/span>
\n\u3060\u3051\u3042\u308a, \u3053\u308c\u304c\u4e0e\u3048\u3089\u308c\u305f\u6761\u4ef6\u306e\u3082\u3068\u3067 15 \u500b\u306e\u30dc\u30fc\u30eb\u3092 A, B, C \u306b\u5206\u914d\u3059\u308b\u65b9\u6cd5\u306e\u500b\u6570\u3067\u3059\u3002
\n\u3000\u3053\u306e\u89e3\u7b54\u306e\u3088\u3046\u306b, A, B, C \u306b\u5148\u306b\u6700\u4f4e\u9650\u306e\u30dc\u30fc\u30eb\u3092\u4e0e\u3048\u3066\u304a\u304d, \u8ffd\u52a0\u5206\u306e\u30dc\u30fc\u30eb\u306e\u500b\u6570\u3092\u6570\u3048\u308b\u65b9\u6cd5\u3092\u300c\u5148\u5165\u308c\u65b9\u5f0f\u300d\u3068\u3044\u3044\u307e\u3059\u3002
\n\u3000
\n(2) A, B, C \u306b\u5c11\u306a\u304f\u3068\u3082 1 \u500b\u306e\u30dc\u30fc\u30eb\u3092\u4e0e\u3048\u308b\u306e\u3067, (1) \u3068\u540c\u3058\u3088\u3046\u306b\u300cA, B, C \u306b\u5148\u306b 1 \u500b\u4e0e\u3048\u3066\u8ffd\u52a0\u5206\u3092\u6570\u3048\u308b\u300d\u3068\u3057\u3066\u3082\u3046\u307e\u304f\u3044\u304d\u307e\u305b\u3093\u3002\u5177\u4f53\u7684\u306b\u306f,
\n\u3000\u30fb\u6700\u521d\u306b A, B, C \u306b\u30dc\u30fc\u30eb\u3092\u5206\u914d\u3059\u308b\u65b9\u6cd5\u306f \\(10\\cdot 9\\cdot 8=720\\) (\u901a\u308a)
\n\u3000\u30fb\u6b21\u306b\u6b8b\u308a 7 \u500b\u306e\u30dc\u30fc\u30eb\u3092 3 \u4eba\u306b\u5206\u914d\u3059\u308b\u65b9\u6cd5\u306f \\(3^{7}\\) (\u901a\u308a)
\n\u3057\u305f\u304c\u3063\u3066,
\n\u3000\u3000\u3000\\(720\\cdot 3^{7}\\) (\u901a\u308a) <\/span>
\n\u3068\u3059\u308b\u306e\u306f\u8aa4\u308a\u3067\u3059\u3002\u3053\u308c\u304c\u8aa4\u308a\u3067\u3042\u308b\u3053\u3068\u306f\u6b21\u306e\u3088\u3046\u306b\u3082\u8aac\u660e\u3067\u304d\u307e\u3059,
\n\u3000\u4f8b\u3048\u3070 10 \u500b\u306e\u30dc\u30fc\u30eb\u3092
\n\u3000\u3000\u2460, \u2461, \u2462, \u2463, \u2464, \u2465, \u2466. \u2467, \u2468, \u2469
\n\u3068\u3057\u307e\u3059\u3002
\n(\u4f8b 1) \u6700\u521d\u306b A, B, C \u306b\u9806\u306b \u2460, \u2461, \u2462 \u3092\u4e0e\u3048\u307e\u3059\u3002
\n\u3000\u3000A (\u2460\u3000\u3000\u3000), B (\u2461\u3000\u3000\u3000),\u3000C (\u2462\u3000\u3000\u3000)
\n\u6b21\u306b, \u6b8b\u308a\u30dc\u30fc\u30eb\u3092\u3059\u3079\u3066 A \u306b\u4e0e\u3048\u308b\u3068\u6b21\u306e\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002
\n\u3000\u3000A (\u2460, \u2463, \u2464, \u2465, \u2466, \u2467, \u2468, \u2469), B (\u2461\u3000\u3000\u3000),\u3000C (\u2462\u3000\u3000\u3000)
\n(\u4f8b 2) \u6700\u521d\u306b A, B, C \u306b\u9806\u306b \u2463, \u2461, \u2462 \u3092\u4e0e\u3048\u307e\u3059\u3002
\n\u3000\u3000A (\u2463\u3000\u3000\u3000), B (\u2461\u3000\u3000\u3000),\u3000C (\u2462\u3000\u3000\u3000)
\n\u6b21\u306b, \u6b8b\u308a\u30dc\u30fc\u30eb\u3092\u3059\u3079\u3066 A \u306b\u4e0e\u3048\u308b\u3068\u6b21\u306e\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002
\n\u3000\u3000A (\u2463, \u2460, \u2464, \u2465, \u2466, \u2467, \u2468, \u2469), B (\u2461\u3000\u3000\u3000),\u3000C (\u2462\u3000\u3000\u3000)
\n\u5148\u307b\u3069\u306e \\(720\\cdot 3^{7}\\) (\u901a\u308a) \u306f (\u4f8b 1) \u3068 (\u4f8b 2) \u3092\u533a\u5225\u3057\u3066\u6570\u3048\u305f\u7d50\u679c\u3067\u3059\u304c, \u5b9f\u969b\u306b\u306f (\u4f8b 1) \u3068 (\u4f8b 2) \u306f\u540c\u3058\u5206\u3051\u65b9\u306b\u306a\u308a\u307e\u3059\u3002\u3057\u305f\u304c\u3063\u3066, \u3053\u306e\u5834\u5408\u306f\u300c\u5148\u5165\u308c\u65b9\u5f0f\u300d\u306f\u901a\u7528\u3057\u307e\u305b\u3093\u3002
\n\u3000

\u5206\u3051\u308b\u3082\u306e\u3092\u533a\u5225\u3059\u308b\u5834\u5408\u306f\u300c\u5148\u5165\u308c\u65b9\u5f0f\u300d\u3092\u7528\u3044\u3066\u306f\u306a\u3089\u306a\u3044<\/H1>
\n\u9577\u304f\u306a\u3063\u305f\u306e\u3067 (2) \u306e\u89e3\u7b54\u306f\u660e\u65e5\u306e\u8a18\u4e8b\u3067\u6271\u3046\u3053\u3068\u306b\u3057\u307e\u3059\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

(1) A, B, C \u304c\u3082\u3089\u3046\u30dc\u30fc\u30eb\u306e\u500b\u6570\u3092 \\(x\\), \\(y\\), \\(z\\) \u3068\u304a\u304d\u307e\u3059\u3002\u3053\u306e\u3068\u304d, \u3000\u3000\u3000\\(x+y+z=15\\), \\(x\\geqq 1\\), \\(y\\geqq 2\\), \\(z\\geqq […]<\/p>\n","protected":false},"author":3,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[7,4,19],"tags":[],"class_list":["post-1426","post","type-post","status-publish","format-standard","hentry","category-7","category-4","category-19"],"_links":{"self":[{"href":"https:\/\/math.co.jp\/blog\/index.php?rest_route=\/wp\/v2\/posts\/1426","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/math.co.jp\/blog\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/math.co.jp\/blog\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/math.co.jp\/blog\/index.php?rest_route=\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/math.co.jp\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1426"}],"version-history":[{"count":5,"href":"https:\/\/math.co.jp\/blog\/index.php?rest_route=\/wp\/v2\/posts\/1426\/revisions"}],"predecessor-version":[{"id":1449,"href":"https:\/\/math.co.jp\/blog\/index.php?rest_route=\/wp\/v2\/posts\/1426\/revisions\/1449"}],"wp:attachment":[{"href":"https:\/\/math.co.jp\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1426"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/math.co.jp\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1426"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/math.co.jp\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1426"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}