已知函数
.
(1)若
恒成立,求
的最小值;
(2)证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b1fa97dc08b1606187da17d5aa8ba19.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e9c599e8d420006448905acec2b8234.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46c5fff83c26487ec698e55b33b5a479.png)
更新时间:2023-07-21 18:27:13
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名校
解题方法
【推荐1】设函数
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(1)若
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(2)若
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