设
,
.
(1)若
,求
的值;
(2)若
,求
在
,
上的递减区间.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bcdefc3d21c4c088022d7adb76a885a6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41c48d161e184f168847ffbc7044682a.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66d76ee2e81f447f84a3e0b39c0388ef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60facce8e7b345a849cb0abcb7ac18e0.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b076a683bd0f32415a783882b4c77f84.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b17fff6cad52af74309c2d811fa5e508.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2719a15b85193b46fe37fab973dfd2f.png)
更新时间:2018-06-06 07:12:06
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