{"id":676,"date":"2013-03-08T23:03:47","date_gmt":"2013-03-08T14:03:47","guid":{"rendered":"http:\/\/www.roundown.net\/nyushi\/?p=676"},"modified":"2021-09-29T21:41:25","modified_gmt":"2021-09-29T12:41:25","slug":"thr200705","status":"publish","type":"post","link":"https:\/\/www.roundown.net\/nyushi\/thr200705\/","title":{"rendered":"\u6771\u5317\u5927\u7406\u7cfb2007\uff1a\u7b2c5\u554f"},"content":{"rendered":"<hr \/>\n<p>\\(xyz\\) \u7a7a\u9593\u306b\u304a\u3044\u3066, \u70b9 \\((1,0,1)\\) \u3068\u70b9 \\((1,0,2)\\) \u3092\u7d50\u3076\u7dda\u5206\u3092 \\(l\\) \u3068\u3057, \\(l\\) \u3092 \\(z\\) \u8ef8\u306e\u307e\u308f\u308a\u306b\u4e00\u56de\u8ee2\u3057\u3066\u3067\u304d\u308b\u56f3\u5f62\u3092 \\(A\\) \u3068\u3059\u308b.\r\n\\(A\\) \u3092 \\(x\\) \u8ef8\u306e\u307e\u308f\u308a\u306b\u4e00\u56de\u8ee2\u3057\u3066\u3067\u304d\u308b\u7acb\u4f53\u306e\u4f53\u7a4d\u3092\u6c42\u3081\u3088.<\/p>\r\n<hr \/>\r\n\r\n    <div id='extLink676'>\r\n        <p>\r\n            <a href='https:\/\/www.roundown.net\/nyushi\/thr200705\/' name='ext676' onclick=\"showHide(676,'https:\/\/www.roundown.net\/nyushi\/thr200705\/',this,'entry');return false;\">\u89e3\u7b54\u306f\u3053\u3061\u3089 &#187;<\/a>\r\n        <\/p>\r\n    <\/div>\r\n    <div id='extText676' style='display: none'>\r\n        \r\n<h2>\u3010 \u89e3 \u7b54 \u3011<\/h2>\r\n<p>\u56f3\u5f62 \\(A\\) \u306f\u4e0b\u56f3\u306e\u3088\u3046\u306b, \u5e95\u9762\u304c\u534a\u5f84 \\(1\\) \u306e\u5186\u67f1\u306e\u5074\u9762\u3068\u306a\u308b.<\/p>\r\n<img decoding=\"async\" src=\"\/\/www.roundown.net\/nyushi\/wp-content\/uploads\/tohoku_r_2007_05_01.png\" alt=\"tohoku_r_2007_05_01\" class=\"aligncenter size-full\" \/>\r\n<p>\\(A\\) \u306e \\(x\\) \u8ef8\u307e\u308f\u308a\u306e\u56de\u8ee2\u4f53\u3092 \\(K\\) \u3068\u304a\u304d, \u305d\u306e\u4f53\u7a4d\u3092 \\(V\\) \u3068\u304a\u304f.<br \/>\r\n\\(K\\) \u306f\u5e73\u9762 \\(x = 0\\) \u306b\u3064\u3044\u3066\u5bfe\u79f0\u306a\u306e\u3067, \\(x \\geqq 0\\) \u306e\u9818\u57df\u306b\u3064\u3044\u3066\u8003\u3048\u308c\u3070\u3088\u3044.<br \/>\r\n\\(K\\) \u306e \\(x = t \\ ( 0 \\leqq t \\lt 1 )\\) \u306b\u3088\u308b\u65ad\u9762\u3092\u8003\u3048\u308b\u3068\u4e0b\u56f3\u659c\u7dda\u90e8\u306e\u3088\u3046\u306b\u306a\u308b.<\/p>\r\n<img decoding=\"async\" src=\"\/\/www.roundown.net\/nyushi\/wp-content\/uploads\/tohoku_r_2007_05_02.png\" alt=\"tohoku_r_2007_05_02\" class=\"aligncenter size-full\" \/>\r\n<p>\u5185\u5f84, \u5916\u5f84\u3092\u305d\u308c\u305e\u308c \\(r , R\\) \u3068\u304a\u304f\u3068\r\n\\[\\begin{align}\r\nr^2 & = 1^2 + ( 1-t^2 ) = 2-t^2 , \\\\\r\nR^2 & = 2^2 + ( 1-t^2 ) = 5-t^2\r\n\\end{align}\\]\r\n\u306a\u306e\u3067, \u3053\u306e\u9762\u7a4d\u3092 \\(S(t)\\) \u3068\u304a\u304f\u3068\r\n\\[\r\nS(t) = \\pi \\left( R^2 -r^2 \\right) = 3 \\pi\r\n\\]\r\n\u3088\u3063\u3066, \u6c42\u3081\u308b\u4f53\u7a4d\u306f\r\n\\[\r\nV = 2 \\displaystyle\\int _ 0^1 S(t) \\, dt = \\underline{6 \\pi}\r\n\\]\r\n\r\n        <p>\r\n            <a href='#ext676' onclick=\"showHide(676,0,this,'entry');return true;\">&#171; \u89e3\u7b54\u3092\u96a0\u3059 <\/a>\r\n        <\/p>\r\n    <\/div>","protected":false},"excerpt":{"rendered":"\\(xyz\\) \u7a7a\u9593\u306b\u304a\u3044\u3066, \u70b9 \\((1,0,1)\\) \u3068\u70b9 \\((1,0,2)\\) \u3092\u7d50\u3076\u7dda\u5206\u3092 \\(l\\) \u3068\u3057, \\(l\\) \u3092 \\(z\\) \u8ef8\u306e\u307e\u308f\u308a\u306b\u4e00\u56de\u8ee2\u3057\u3066\u3067\u304d\u308b\u56f3\u5f62\u3092 \\(A\\) \u3068\u3059\u308b. \\(A\\) [&hellip;]","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":[95],"tags":[148,109],"_links":{"self":[{"href":"https:\/\/www.roundown.net\/nyushi\/wp-json\/wp\/v2\/posts\/676"}],"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=676"}],"version-history":[{"count":0,"href":"https:\/\/www.roundown.net\/nyushi\/wp-json\/wp\/v2\/posts\/676\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.roundown.net\/nyushi\/wp-json\/wp\/v2\/media?parent=676"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.roundown.net\/nyushi\/wp-json\/wp\/v2\/categories?post=676"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.roundown.net\/nyushi\/wp-json\/wp\/v2\/tags?post=676"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}