已知函数
.
(1)判断函数
的单调性;
(2)若函数
有两个极值点
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/69e1a60e2e691f3dee50d15246091369.png)
(1)判断函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c516428cc0ad79391e1961fabc1d295.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8dcdb163a0fd8a17c73249dd22c045e9.png)
更新时间:2017-09-03 19:19:57
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真题
名校
【推荐1】已知
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(Ⅰ)若
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(Ⅱ)若
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(Ⅱ)若
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【推荐2】已知函数
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(1)若函数
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(1)若
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(2)当
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解题方法
【推荐1】已知函数
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(1)当函数
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(2)若函数
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【推荐2】已知函数
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b78b72e777c37963f7c48aa27a21ccdc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f2294bf0b10d85236ca70aa7f6e52103.png)
(1)记
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f22a4a0dd7307a1323d25331e60782d8.png)
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【推荐2】已知函数
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