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[函数] 一道含参的函数问题

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敬畏数学 posted 2016-2-17 11:42 |Read mode
存在x>1,|x/(1-e)+ln(x-1)|<=(lnx+2bx)/x成立,求b的取值范围?

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游客 posted 2016-2-17 20:43
未命名.JPG

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original poster 敬畏数学 posted 2016-2-18 09:23
回复 2# 游客
既然最值都在x=e取得,那就简单了,显然F(X)最大值在x=e处取得。呵呵。下面对F(X)的特性讨论多余。

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