题目
题型:不详难度:来源:
![](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.![]() |
答案
解析
![](http://img.shitiku.com.cn/uploads/allimg/20191014/20191014100006-55636.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191014/20191014100007-56071.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191014/20191014100007-18223.png)
核心考点
举一反三
![](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)
已知等比数列
![](http://img.shitiku.com.cn/uploads/allimg/20191014/20191014095938-85448.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191014/20191014095939-71662.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191014/20191014095939-66318.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191014/20191014095939-36195.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191014/20191014095939-17963.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191014/20191014095939-40944.gif)
(1)求
![](http://img.shitiku.com.cn/uploads/allimg/20191014/20191014095938-85448.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191014/20191014095940-60571.gif)
已知数列
![](http://img.shitiku.com.cn/uploads/allimg/20191014/20191014095929-51634.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191014/20191014095930-88252.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191014/20191014095930-24938.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191014/20191014095930-65680.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191014/20191014095930-98829.gif)
(1)求数列
![](http://img.shitiku.com.cn/uploads/allimg/20191014/20191014095929-51634.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191014/20191014095930-65680.gif)
(2)记
![](http://img.shitiku.com.cn/uploads/allimg/20191014/20191014095930-57191.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191014/20191014095931-63531.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191014/20191014095931-47911.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191014/20191014095931-22960.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191014/20191014095931-63531.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191014/20191014095921-44520.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191014/20191014095921-79619.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191014/20191014095921-49368.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191014/20191014095922-90935.gif)
(1)求数列
![](http://img.shitiku.com.cn/uploads/allimg/20191014/20191014095921-79619.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191014/20191014095922-55906.gif)
(2)若数列
![](http://img.shitiku.com.cn/uploads/allimg/20191014/20191014095922-52058.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191014/20191014095922-92832.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191014/20191014095923-45778.gif)
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