题目
题型:不详难度:来源:
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013014029-85392.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013014030-46052.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013014030-74615.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013014030-84856.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013014030-74615.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013014030-45764.gif)
答案
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013014030-55227.gif)
解析
核心考点
举一反三
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013014022-55330.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013014022-43386.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013014022-67719.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013014022-55330.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013014022-67808.gif)
(Ⅰ)求
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013014023-92666.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013014022-67808.gif)
(Ⅱ)令
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013014023-58057.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013014023-51205.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013014023-85754.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013014023-63988.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013014006-65896.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013014006-19166.gif)
(1)判断数列
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013014007-48140.gif)
(2)如果
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013014007-91823.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013014007-48140.gif)
(3)在(2)的条件下,若数列
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013014007-48140.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013014007-15424.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013014007-18035.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013014007-15424.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013014008-56303.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013014007-18035.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013013955-25842.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013013955-38120.gif)
(Ⅰ)求数列
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013013955-25842.gif)
(Ⅱ)若数列
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013013956-74418.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013013956-45901.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013013956-28632.gif)
(Ⅲ)证明:
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013013956-67259.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013013944-70895.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013013944-90957.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013013944-16816.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013013944-43994.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013013945-29204.gif)
(I)求数列
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013013944-70895.gif)
(II)对任意给定的正整数
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013013945-65956.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013013945-18487.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013013945-24007.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013013945-70094.gif)
(
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013013946-65219.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013013946-20005.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013013946-48085.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013013937-24751.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013013938-46069.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013013938-63545.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013013938-91080.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013013938-37887.gif)
A.![]() | B.![]() | C.![]() | D.![]() |
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