已知函数
,
.
(1)当
时,证明:
;
(2)若函数
有两个不同的零点,求a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10bb94686578f54ecc5f65f94141cc25.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec3e3bcd67cf1a355986c6e3132470c7.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee07d10876bc25a53d400fabd33d5467.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8b6894e8c345a035e89ec672503a01f.png)
更新时间:2021-07-29 19:18:31
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