已知函数
,
.
(Ⅰ)讨论
的单调性;
(Ⅱ)若
存在极值,求所有极值之和的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ae3e55a6c24e16d70ca5f79f3b354e2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd1b014d948a86429dcdcc01dc004dd1.png)
(Ⅰ)讨论
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(Ⅱ)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
更新时间:2020-02-16 11:27:27
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