题目
题型:不详难度:来源:
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013014543-74639.gif)
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![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013014544-87974.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013014544-40753.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013014545-50130.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013014545-16146.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013014545-77556.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013014545-81528.gif)
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答案
解析
核心考点
举一反三
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013014538-18041.gif)
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![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013014538-18041.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013014539-57891.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013014538-99521.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013014539-57891.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013014528-28285.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013014528-81942.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013014528-32445.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013014528-51428.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013014529-91858.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013014529-61521.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013014529-19458.gif)
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![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013014530-78114.gif)
(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![]() |
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013014441-49354.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013014441-95849.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013014441-24917.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013014441-79243.gif)
A.138 | B.135 | C.95![]() ![]() | D.23 |
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013014437-33507.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013014438-12852.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013014438-50297.gif)
则
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013014438-81115.gif)
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