题目
题型:不详难度:来源:
![](http://img.shitiku.com.cn/uploads/allimg/20191014/20191014094815-87763.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191014/20191014094816-50381.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191014/20191014094816-19962.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191014/20191014094816-47658.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191014/20191014094816-34237.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191014/20191014094815-87763.png)
答案
解析
核心考点
举一反三
已知数列
![](http://img.shitiku.com.cn/uploads/allimg/20191014/20191014094804-21020.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191014/20191014094804-60931.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191014/20191014094804-14391.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191014/20191014094804-15608.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191014/20191014094804-40579.png)
(1)若数列
![](http://img.shitiku.com.cn/uploads/allimg/20191014/20191014094805-74617.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191014/20191014094805-25115.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191014/20191014094805-74617.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191014/20191014094805-23954.png)
(2)(理)若数列
![](http://img.shitiku.com.cn/uploads/allimg/20191014/20191014094805-98669.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191014/20191014094805-92697.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191014/20191014094805-98669.png)
(文)若数列
![](http://img.shitiku.com.cn/uploads/allimg/20191014/20191014094805-98669.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191014/20191014094805-92697.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191014/20191014094805-52662.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191014/20191014094805-98669.png)
(3)当
![](http://img.shitiku.com.cn/uploads/allimg/20191014/20191014094805-52662.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191014/20191014094806-68754.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191014/20191014094806-52456.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191014/20191014094806-77736.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191014/20191014094748-78898.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191014/20191014094748-68721.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191014/20191014094748-88991.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191014/20191014094749-23380.png)
A.第一象限 . | B.第二象限 . | C.第三象限 . | D.第四象限 . |
![](http://img.shitiku.com.cn/uploads/allimg/20191014/20191014094734-57808.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191014/20191014094735-94672.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191014/20191014094735-10771.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191014/20191014094735-42002.png)
A.![]() | B.![]() | C.![]() | D.![]() ![]() |
A.![]() | B.![]() | C.![]() ![]() | D.一![]() ![]() |
![](http://img.shitiku.com.cn/uploads/allimg/20191014/20191014094714-38389.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191014/20191014094715-30782.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191014/20191014094715-91304.png)
(1)求数列
![](http://img.shitiku.com.cn/uploads/allimg/20191014/20191014094714-38389.png)
(2)若
![](http://img.shitiku.com.cn/uploads/allimg/20191014/20191014094715-91940.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191014/20191014094715-42919.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191014/20191014094715-95203.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191014/20191014094716-19682.png)
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