已知函数
.
(1)求
在
上的单调区间;
(2)存在
,使得
成立,求实数k的取值范围;
(3)若对于
、
,不等式
恒成立,求实数a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94b195180c8b0c44ad2e6b636b36ec7b.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5d6243e93c41978871cb23d8e66148d.png)
(2)存在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/71651bced178ddb2e1c6ba718b2df839.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/104a7d4fcbd4e2cfcb0912740f0c44a7.png)
(3)若对于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32e837bb2555b79c3374f6c509c8fba5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67addd3a3182dcfe551667b621e42412.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da060268ec053cf0cfe47cb3709f679b.png)
21-22高二下·上海闵行·期末 查看更多[3]
更新时间:2022-07-14 22:43:34
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