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[不等式] 求教一道三角形相关的最值问题

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lemondian Posted 2018-5-22 20:54 |Read mode

设$\Delta ABC$的面积为2，若A,B,C所对的边分别为a,b,c，求$a^2+2b^2+3c^2$的最小值。

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色k Posted 2018-5-22 21:52

forum.php?mod=viewthread&tid=4413 由16楼开始看

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Author| lemondian Posted 2018-5-22 22:33

原来玩得如此深入了！感谢

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