1 . 已知函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a62f4f0e2852e34abc4bd42adc5e34ad.png)
且
.
(1)当
时,求曲线
在点
处的切线方程;
(2)当
时,求证:
;
(3)讨论函数
的极值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a62f4f0e2852e34abc4bd42adc5e34ad.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3e896d56217e06642a3f1d6101dbdaa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f28b08682efa2692b052f64fe1448fce.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5bea9227dd0104da58e0c40952cc87ed.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b108ab31cc093f03cf48ad65429889e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04a6a4357fbdb4015810df156e1ed559.png)
(3)讨论函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
您最近一年使用:0次
2019-04-09更新
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860次组卷
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5卷引用:北京市房山区2024届高三上学期入学统练数学试题