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[不等式] 一个带参数的几何不等式

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青青子衿 posted 2013-10-19 13:17 |Read mode
搜狗截图_2012-08-04_22-36-52.jpg

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kuing posted 2013-10-19 15:42
这是著名的“惯性矩不等式”。
在数学奥林匹克小丛书之一《几何不等式》(冷岗松)P72 里有个向量证法;
用坐标法也可以,见 bbs.pep.com.cn/forum.php?mod=redirect&got … 7723&pid=3670131 2#

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其妙 posted 2013-10-19 17:32
回复 2# kuing
那边何版的图太小,转过来看看!
这个不等式也叫Klamkin不等式
多项式.gif
妙不可言,不明其妙,不着一字,各释其妙!

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