已知函数
.
(1)若曲线
与直线
相切,求a的值;
(2)若存在
,使得不等式
成立,求a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b85ff495176eba2fb7f15571f6b5f0b3.png)
(1)若曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3897bf276a0b6c2121917d39b369df7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d77f5191798242b7b9b88a75e17e4425.png)
(2)若存在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a3368388525e30cb7179909b03184eb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2d5e1f3cc068f93290ff158144b787b.png)
更新时间:2022-05-18 16:24:49
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