已知函数
.
(1)若
,证明:曲线
在
处的切线与直线
垂直;
(2)若
,当
时,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6845a29100f7ffb8c3ad1d820592031a.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d494dd08ea05abf7e99261b6f05efc47.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ecf6d40b58666f8c945938aa0d1e8f6b.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bad71d89cb1213d8796e1ee84fd171e7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08de6d63f3dc41dea59ac1cbd16e8d07.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a1db0ce92b8b408198b4ac4d1ad2ee2e.png)
更新时间:2020-03-18 16:36:33
|
【知识点】 利用导数证明不等式
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【推荐1】已知函数
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【推荐2】已知函数
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7929318aceb75a6c5741c3b8793b09e1.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/004c0d2a3ede111b1eff3f03edfd5616.png)
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