题目
题型:不详难度:来源:
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018120214-39331.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018120215-80344.jpg)
答案
解析
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018120215-72962.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018120215-49751.png)
核心考点
举一反三
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018120201-72879.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018120201-50779.png)
(1)求
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018120201-97042.png)
(2)当
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018120201-33447.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018120202-74098.png)
(3)求证:ln(n+1)>
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018120202-89963.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018120202-86668.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018120203-80127.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018120203-61056.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018120203-20883.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018120147-69941.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018120147-53227.png)
A在区间
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018120147-48444.png)
B在区间
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018120147-48444.png)
C在区间
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018120147-96161.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018120148-85384.png)
D在区间
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018120147-96161.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018120148-85384.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018120138-40821.png)
(1)如
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018120138-75076.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018120138-79844.png)
(2)若
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018120138-79844.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018120138-92714.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018120139-42065.png)
证明: o.
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018120139-18769.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018120125-11489.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018120125-51400.png)
(1)求函数
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018120125-17591.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018120126-10713.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018120126-85196.png)
(2)对(1)中的
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018120126-85196.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018120126-83753.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018120126-80706.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018120127-40515.png)
(3)若点A
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018120127-95015.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018120127-74750.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018120127-78853.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018120128-36329.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018120128-79823.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018120120-74860.png)
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