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[不等式] 二元最值

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Shiki Posted 2019-8-29 20:03 |Read mode

$x,y>0$,$x^2+y^2+\frac{1}{x}+\frac{1}{y}=\frac{27}{4}$求$\frac{15}{x}-\frac{3}{4y}$的最小值。

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kuing Posted 2019-8-29 20:07

见 forum.php?mod=redirect&goto=findpost& … d=4987&pid=30499

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Author| Shiki Posted 2019-8-29 20:11

回复 2# kuing
论坛快赶上百宝箱了0.0

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