题目
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答案
解析
核心考点
举一反三
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(1)求数列
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013014528-51428.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013014529-19458.gif)
(2)若数列{
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013014530-65983.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013014529-91858.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013014531-49412.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013014531-49412.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013014531-97131.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013014529-91858.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013014447-98567.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013014447-93618.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013014447-36303.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013014448-87099.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013014448-45645.gif)
A.第![]() | B.第![]() | C.第![]() | D.第![]() |
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