题目
题型:不详难度:来源:
![](http://img.shitiku.com.cn/uploads/allimg/20191014/20191014100042-87271.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191014/20191014100042-13420.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191014/20191014100042-81761.png)
A.12 | B.10 | C.8 | D.![]() |
答案
解析
![](http://img.shitiku.com.cn/uploads/allimg/20191014/20191014100042-23223.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191014/20191014100042-58083.png)
核心考点
举一反三
![](http://img.shitiku.com.cn/uploads/allimg/20191014/20191014100028-43893.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191014/20191014100029-60106.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191014/20191014100029-32605.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191014/20191014100029-30543.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191014/20191014100029-88262.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191014/20191014100029-29664.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191014/20191014100030-19779.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191014/20191014100030-86336.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191014/20191014100030-86336.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191014/20191014100030-52412.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191014/20191014100030-68050.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191014/20191014100031-42094.gif)
(1)求数列
![](http://img.shitiku.com.cn/uploads/allimg/20191014/20191014100029-88262.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191014/20191014100029-29664.gif)
(2)记
![](http://img.shitiku.com.cn/uploads/allimg/20191014/20191014100031-51230.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191014/20191014100031-95316.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191014/20191014100030-68050.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191014/20191014100031-83194.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191014/20191014100030-19779.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191014/20191014100031-50357.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191014/20191014100020-74746.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191014/20191014100020-65928.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191014/20191014100021-20660.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191014/20191014100021-93054.png)
A.![]() | B.![]() | C.![]() | D.![]() |
![](http://img.shitiku.com.cn/uploads/allimg/20191014/20191014100004-21614.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191014/20191014100004-39692.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191014/20191014100005-41438.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191014/20191014100005-47153.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191014/20191014100005-83875.png)
A.![]() | B.![]() | C.![]() | D.![]() |
![](http://img.shitiku.com.cn/uploads/allimg/20191014/20191014095950-97315.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191014/20191014095950-68995.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191014/20191014095950-23834.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191014/20191014095951-91713.gif)
(1)证明数列
![](http://img.shitiku.com.cn/uploads/allimg/20191014/20191014095951-26456.gif)
(2)设数列
![](http://img.shitiku.com.cn/uploads/allimg/20191014/20191014095950-97315.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191014/20191014095951-63124.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191014/20191014095951-30898.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191014/20191014095952-12919.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191014/20191014095944-60693.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191014/20191014095944-40673.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191014/20191014095944-84231.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191014/20191014095945-31823.gif)
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