已知函数
.
(1)当
时,解不等式
;
(2)若
存在实数解,求实数a取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a646ded3861df41de70ad46a86858aa6.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9a81e971f501d78f5560c0c3d42f0f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f98325361692162452a6ab28a73fd940.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ec4bc74f621778bc744c2f158544b39.png)
更新时间:2018-07-16 15:40:46
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