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[不等式] 谜一样的不等式 寻找明灯照亮方向

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facebooker posted 2019-7-23 02:04 |Read mode
已知$a,b,c≥0$且有$a+b+c=1,$证明:$a^2+b^2+c^2+\frac{9}{2}abc≥\frac{1}{2}$

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kuing posted 2019-7-23 02:54
齐次化 + schur 分拆

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kuing posted 2019-7-23 13:44

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isee posted 2020-11-9 10:06
回复 3# kuing

搜到另外一个链接,可下;传上来。
$type

用Schur分拆方法证明不等式竞赛题.pdf

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