证明:当时, 时, 时,
证明:当时,
证明:当时,。
令f(x)=xlnx,f′(x)=lnx+1在x>1上,f′(x)>0,所以在x>1上,函数f(x)单增,所以,,即 。
扫描二维码免费使用微信小程序搜题/刷题/查看解析。
版权声明:本文由翰林刷题小程序授权发布,如需转载请注明出处。
本文链接:https://doc.20230611.cn/post/55103.html
上一篇:下列关于问卷调查分析法优点表述错误的一项是()。
下一篇:Complete the following sentence with a (compound) word derived from the one given in bracket. Unlike his quite brother, he is very( ). (talk)
Complete the following sentence with a (compound) word derived from the one given in bracket.
Unlike his quite brother, he is very( ). (talk)