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[函数] 如何证明函数不等式？

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lemondian posted 2021-4-27 22:55 |Read mode

如何证明函数不等式？
当$x>0$时,证明：$f(x)=xe^x+1/x-2x>0$

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kuing posted 2021-4-27 23:23

太简单，直接 e^x>1+x 即可，你不会是抄错题了吧……

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original poster lemondian posted 2021-4-28 07:40

回复 2# kuing
不好意思，我算错了，是很简单的题

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