名校
1 . 已知函数
,
.
(Ⅰ)讨论
的单调性;
(Ⅱ)若
存在极值点
且
,求证:当
时,
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e21baf8f1d43c1f3747a1be2b3cd68b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec3e3bcd67cf1a355986c6e3132470c7.png)
(Ⅰ)讨论
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(Ⅱ)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aca579894dad67bc82cb715fd48e0d70.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0c7e00a742229216ae22f20e326f49e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c0aa2ef928b6e3341d0a0dc6d8055b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f0bf721eb15518d5dc73d36c342c7e5.png)
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2020-09-20更新
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2卷引用:重庆市万州沙河中学2020-2021学年高二下学期4月月考数学试题