已知函数
.
(1)若
时,
,求实数
的取值范围;
(2)求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e479a70a6b47a275dfb0bbac1dcc1cf2.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2fb40a36a293471742ce75f6b9635b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f0f32f60a5f8d6e89ca3ad3b1d563d7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(2)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/534a35d612fd08ebbd3f6078572b3d77.png)
2021·河南洛阳·二模 查看更多[2]
更新时间:2021-05-14 19:08:34
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