设
,函数
.
(1)当
时,求
在
内的极值;
(2)设函数
,当
有两个极值点
时,总有
,求实数
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1e69392d21261afd8e5e5f096634669.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9004b6f6bc06d0995a94a10301f8c813.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1392bc24e214e9550b64d982ea9cdf71.png)
(2)设函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81f7f2b0b04b9a44542cb3c95d716bfc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8dae74c724114bfeff024dd7b79f5edc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dff1c464ca8ab15f4d4fd182463150d7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
更新时间:2020-04-09 12:21:54
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(1)若
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