已知函数
.
(1)求函数
的最小值;
(2)求函数
的单调区间;
(3)若函数
在
单调递增,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4964c3c4b7e5863d25f382f75cd5bad.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2eac50ab77d16004e4a22dca1df808cb.png)
(3)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c6eeb6bb15ae0e58bd092d02a8b7624.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97148e04ca6a9f9dca0aba91ce4e1d84.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
更新时间:2021-01-28 08:36:17
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适中
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名校
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解题方法
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