题目
题型:不详难度:来源:
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012094425-55060.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012094425-16007.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012094425-78915.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012094425-80291.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012094425-58865.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012094425-16007.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012094425-78915.png)
A.![]() ![]() | B.![]() | C.![]() | D.![]() |
答案
解析
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012094425-55060.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012094425-16007.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012094425-78915.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012094425-80291.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012094425-58865.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012094425-16007.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012094426-53514.png)
核心考点
举一反三
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012094414-90607.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012094414-94952.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012094414-46469.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012094415-79053.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012094415-53858.png)
(1)求数列的通项公式
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012094415-72977.png)
(2)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012094415-95876.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012094415-24309.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012094414-46469.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012094415-95876.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012094350-12449.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012094350-32595.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012094350-45001.png)
(1)若
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012094350-22104.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012094351-20562.png)
(2)求数列
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012094350-12449.png)
(3)若
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012094351-77975.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012094351-49872.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012094351-72368.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012094352-58701.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012094326-78556.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012094326-83821.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012094326-81581.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012094326-74783.png)
A.![]() | B.![]() | C.![]() | D.![]() |
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012094313-20924.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012094313-93982.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012094313-61320.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012094313-73702.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012094313-23040.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012094314-63644.png)
(1)求数列
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012094314-13632.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012094313-23040.png)
(2)求数列{
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012094314-38098.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012094313-93982.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012094314-64712.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012094301-34331.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012094301-81173.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012094301-76621.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012094302-47171.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012094302-70869.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012094302-72101.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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