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[不等式] 条件不等式

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chudengshuxue Posted at 2018-5-18 16:28:22 |Read mode
Last edited by hbghlyj at 2025-3-19 17:47:25正数 $a, b, c$ 满足 $\sum a=3$,求证:$\sum \frac{1}{a \sqrt{2\left(a^2+b c\right)}} \geq \sum \frac{1}{a+b c}$

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2025-4-21 01:44 GMT+8

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