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[不等式] 函数，不等式

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苏少波Daniel

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苏少波Daniel Posted 2018-7-17 23:35 |Read mode

群题，超出个人能力范围之内，求高手解决。

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yao4015 Posted 2018-7-18 12:25

回复 1# 苏少波Daniel
$x$ 的范围没指明啊, 是 $x>0$ 吗?

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苏少波Daniel

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Author| 苏少波Daniel Posted 2018-7-18 13:45

回复 2# yao4015

是的

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