已知函数
,
,其中
.
(1)若
在
上单调递减,求a的取值范围.
(2)证明:
,n,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec6263576e5c3f2324a8dac311476bf9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f279ed14505a5b48d7c777b0c0d7679.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7cc850b43885d4281a29e5b2a96570dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7160d93f92089ef36f3dab809d3114b8.png)
(2)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5b01abfe6d2b9de121164e4512ae055.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cad52924df9291d5d191d18e09374ee1.png)
更新时间:2023-04-05 22:40:05
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