题目
题型:不详难度:来源:
![](http://img.shitiku.com.cn/uploads/allimg/20191015/20191015033338-31787.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191015/20191015033338-47188.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191015/20191015033338-69745.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191015/20191015033338-75328.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191015/20191015033339-41998.png)
A.![]() | B.![]() | C.![]() | D.![]() |
答案
解析
试题分析:设数列
![](http://img.shitiku.com.cn/uploads/allimg/20191015/20191015033340-33716.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191015/20191015033340-24941.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191015/20191015033340-97954.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191015/20191015033340-90083.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191015/20191015033338-69745.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191015/20191015033341-91886.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191015/20191015033338-69745.png)
核心考点
举一反三
![](http://img.shitiku.com.cn/uploads/allimg/20191015/20191015033328-36365.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191015/20191015033329-89496.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191015/20191015033329-91442.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191015/20191015033329-69533.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191015/20191015033329-39018.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191015/20191015033330-76239.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191015/20191015033329-89496.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191015/20191015033330-55689.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191015/20191015033330-55689.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191015/20191015033314-95178.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191015/20191015033314-51651.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191015/20191015033314-41255.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191015/20191015033314-83368.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191015/20191015033314-78142.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191015/20191015033315-99175.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191015/20191015033315-92086.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191015/20191015033315-95819.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191015/20191015033315-43697.png)
(1)分别求数列
![](http://img.shitiku.com.cn/uploads/allimg/20191015/20191015033314-95178.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191015/20191015033315-92086.png)
(2)若数列
![](http://img.shitiku.com.cn/uploads/allimg/20191015/20191015033316-44074.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191015/20191015033316-24161.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191015/20191015033316-88384.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191015/20191015033316-44074.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191015/20191015033314-51651.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191015/20191015033316-94929.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191015/20191015033316-25863.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191015/20191015033317-24348.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191015/20191015033316-94929.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191015/20191015033307-93208.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191015/20191015033308-41637.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191015/20191015033308-49648.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191015/20191015033308-48572.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191015/20191015033308-29468.png)
A.42 | B.43 | C.44 | D.45 |
![](http://img.shitiku.com.cn/uploads/allimg/20191015/20191015033255-75347.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191015/20191015033256-46558.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191015/20191015033256-94425.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191015/20191015033256-52925.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191015/20191015033256-17659.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191015/20191015033256-15940.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191015/20191015033257-37421.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191015/20191015033257-24746.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191015/20191015033257-67684.png)
(1)求
![](http://img.shitiku.com.cn/uploads/allimg/20191015/20191015033257-22625.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191015/20191015033258-45343.png)
(2)设数列
![](http://img.shitiku.com.cn/uploads/allimg/20191015/20191015033258-15633.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191015/20191015033258-35938.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191015/20191015033258-39615.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191015/20191015033256-94425.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191015/20191015033258-58536.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191015/20191015033242-31131.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191015/20191015033242-21668.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191015/20191015033243-53558.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191015/20191015033243-26106.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191015/20191015033243-86487.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191015/20191015033243-74983.png)
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