已知函数
,
(1)试计算
…,据此你能发现什么结论?证明你的结论;
(2)讨论函数
的单调性;
(3)设
,求函数
在
上的零点个数(提示;可以借助(1)的结论.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/afb98c25794c9159739d73400c68d578.png)
(1)试计算
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57a2eff3a89eda080d0ad0363237610a.png)
(2)讨论函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(3)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d6119aaaa6b3964bca3d41f9652fae6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/612c79eb4397fdbb3cb933955389b6a4.png)
更新时间:2021-09-06 22:49:41
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