已知函数
为
的导函数.
(Ⅰ)令
求
的单调区间;
(Ⅱ)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7694913d438b5075bea3515738ac32de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(Ⅰ)令
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8211749eaa81821bd9738d067f441b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
(Ⅱ)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b727fae2e8d5648700d3b39dfc7860f.png)
更新时间:2017-05-26 17:37:16
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【推荐2】已知函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d4ba4f7498807cb1e78ac1e09cff5ce.png)
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