已知函数
,
.
(1)函数
在
处取得极大值,求
的值;
(2)若
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/662f62f76e59ce94b216363f507953b4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd5cdde751120c6deab563a6f7f8cf05.png)
(1)函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4a7d583ecb54636b5f912ffd1e27862.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11abb76da45ffa52b47c3a6b9a03ac7e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b03e483e8a37a8e0e1fb327f99ad93ea.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/491958923f1ea271aff14605a13f9f64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e48eedd3c7fb159d3ffce06ba939cc8.png)
2023·湖南·三模 查看更多[3]
更新时间:2023-04-25 20:49:34
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aec19b68e3add9d5bfcc6269a1855b87.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/200f24e682c93e02a87f3f9d57dc5d40.png)
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