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[函数] 一个含指对三角函数的范围问题

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力工 Posted 2020-5-23 15:34 |Read mode
若$0≤x≤π$时,$e^x+ln(x+1)+asinx≥1$恒成立,求实数$a$的取值范围.

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facebooker Posted 2020-5-23 19:34
Last edited by facebooker 2020-5-25 14:12$a≥-2$  同求过程

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敬畏数学 Posted 2020-5-25 10:58
套路。端点值为零,增函数即可。最近不好回帖。

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