[不等式] 五元不等式一条

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v6mm131 posted 2017-8-31 22:01 |Read mode

Last edited by v6mm131 2017-9-1 00:56若正数$a,b,c,d,e$满足$a+b+c+d+e=5$,证明：\[\sum a\sqrt{a+b}\ge 5\sqrt{2}\]

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2025-7-23 09:41 GMT+8

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