设函数
.
(1)求函数
的零点;
(2)若
,关于
的不等式
解集为(
)证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09a30e7432248609d2d8162d36569489.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d217c7b12e12e5fb67472452518859ec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26e2e80d00471ac8f3e82eef3e462317.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4e288596fa3811dd2c17bded60e82e7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3cf6c6d8c20e3a39406270406db36e5.png)
更新时间:2019-06-02 22:33:22
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