已知函数
(常数
.
(Ⅰ) 当
时,求曲线
在点
处的切线方程;
(Ⅱ)讨论函数
在区间
上零点的个数(
为自然对数的底数).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9de5dfd4d956751485330e9ef699e0e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1b6d2853ae57f4d2c3b5a0ac6fd4a5f.png)
(Ⅰ) 当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e65397f11ea8af736f38debadf420c4a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ba13960b18c387109b1bf3c4f5ba207.png)
(Ⅱ)讨论函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1efd5007553e521a301d69b4feb69a7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6da56e8ee8614b1a2f0d88dbd8dec098.png)
2011·广东揭阳·一模 查看更多[1]
(已下线)2012届广东省揭阳第一中学高三上学期摸底考试理科数学
更新时间:2016-12-11 05:45:27
|
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