设函数
,若函数
在x=
处取得极小值.
(1)求a的值;
(2)若不等式
在区间
上恒成立,求实数b的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51fca6fb6a5366c4a0a9f8536982c706.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
(1)求a的值;
(2)若不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f68e1c7928d696edb08dc4079bca5f42.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f7dbb416ec1ff1984a724a4f48bf692.png)
更新时间:2020-05-16 11:20:05
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