题目
题型:不详难度:来源:
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009010417-48186.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009010417-89892.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009010417-48186.png)
A.128 | B.80 | C.64 | D.56 |
答案
解析
试题分析:∵
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009010417-70837.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009010417-32781.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009010418-77282.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009010418-88488.png)
核心考点
举一反三
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009010332-54954.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009010332-89170.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009010332-88898.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009010332-51380.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009010333-30905.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009010333-48638.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009010333-34650.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009010333-49166.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009010334-16071.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009010334-25197.png)
(1)求数列
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009010333-34650.png)
(2)设
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009010334-76868.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009010334-57220.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009010333-49166.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009010334-26680.png)
(3)证明对一切
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009010335-40583.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009010335-34235.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009010122-75138.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009010122-76243.png)
(1)求证:
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009010123-30720.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009010122-75138.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009010123-32378.png)
(2)数列
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009010123-62975.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009010123-77268.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009010123-62975.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009010124-85325.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009010124-42510.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009010124-17992.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009010124-60708.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009010113-13760.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009010113-97975.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009010113-61784.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009010113-13760.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009010113-95219.png)
.
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009010100-41803.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009010101-48124.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009010101-75689.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009010101-49621.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009010101-82573.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009010102-53346.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009010102-92919.png)
(1)求数列
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009010100-41803.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009010101-75689.png)
(2)设
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009010102-88518.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009010102-41632.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009010101-49621.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009010103-73772.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009010103-93398.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009010024-76238.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009010024-91348.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009010024-85142.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009010024-55498.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009010025-15506.png)
A.![]() | B.![]() | C.2014 | D.![]() |
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