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[不等式] 三角形中,求参数的最大值

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lemondian Posted at 2024-12-31 22:33:53 |Read mode
在$\triangle ABC$中,若$ \sum\sqrt{\cot\dfrac{A}{2}cot\dfrac{B}{2}-1}\geqslant \lambda  \sum\sqrt{\cot\dfrac{A}{2}cot\dfrac{B}{2}}$,求的最大值。

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kuing Posted at 2024-12-31 22:42:01

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哦,我也总觉得在哪见过,就是想不起来我问过,哎!  Posted at 2024-12-31 23:26

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