题目
题型:不详难度:来源:
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012123321-85199.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012123321-11209.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
答案
解析
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012123323-80434.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012123323-35408.png)
核心考点
举一反三
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012123313-73073.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012123313-68877.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012123313-50625.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012123313-46145.png)
A.![]() | B.![]() | C.![]() | D.![]() |
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012123305-15701.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012123305-11327.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012123305-93042.png)
(1)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012123305-55901.png)
(2)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012123306-87827.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012123253-81550.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012123253-33793.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012123253-52375.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012123253-16593.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012123254-80091.png)
(1)求数列
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012123253-81550.png)
(2)等差数列
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012123254-32081.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012123253-33793.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012123254-54088.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012123254-92222.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012123255-90884.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012123254-54088.png)
(3)数列
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012123255-79192.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012123253-33793.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012123255-40773.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012123255-40773.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012123227-94923.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012123228-65697.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012123227-94923.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012123228-83828.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012123229-36422.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012123229-83594.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012123229-61563.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012123230-80121.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012123230-25602.png)
(Ⅰ)求数列
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012123227-94923.png)
(Ⅱ)求数列
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012123230-60456.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012123228-83828.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012123230-58897.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012123156-48545.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012123157-17487.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012123157-10165.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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