题目
题型:不详难度:来源:
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012130116-26327.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012130116-33644.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012130116-97618.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012130116-30364.png)
答案
解析
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012130117-83563.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012130117-94797.png)
因
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012130117-90317.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012130117-99258.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012130117-17459.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012130118-64969.png)
核心考点
举一反三
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012130057-49819.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012130057-58183.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012130057-36645.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012130058-54779.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012130058-29529.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012130058-73002.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012130058-97416.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012130059-18666.png)
![]() |
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012130026-97804.png)
(Ⅰ)设
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012130026-48068.png)
(Ⅱ)设
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012130026-24214.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012130026-36722.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012130010-85558.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012130010-63607.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012130010-74991.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012130011-84997.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012130011-67845.png)
(1)求证:数列
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012130011-38458.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012130010-85558.png)
(2)若数列
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012130011-27564.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012130012-34319.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012130011-27564.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012130012-95612.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012130012-49102.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012125954-30883.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012125955-73026.png)
(I)证明数列
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012125955-79090.png)
(II)若
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012125955-80224.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012125955-75674.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012125956-30206.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012125956-44920.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012125956-91551.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012125912-21785.png)
A.48 | B.49 | C.50 | D.51 |
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