题目
题型:不详难度:来源:
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012215420-28279.gif)
A.![]() | B.![]() | C.![]() | D.![]() |
答案
解析
核心考点
举一反三
已知数列
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012215323-20448.gif)
(1)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012215323-24267.gif)
(2)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012215323-20111.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012215312-51006.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012215312-10052.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012215312-94100.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012215312-32404.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012215312-94100.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012215312-10052.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012215312-10052.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012215312-94100.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012215313-80644.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012215313-78439.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012215313-47738.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012215313-96658.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012215314-76757.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012215314-49201.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012215301-26300.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012215302-44074.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012215301-26300.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012215302-84607.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012215302-92097.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012215302-21723.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012215302-99852.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012215303-33467.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012215303-20150.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012215303-92796.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012215303-45832.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012215303-71266.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012215304-60998.gif)
(1) 求数列
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012215301-26300.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012215303-92796.gif)
(2) 求数列
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012215304-87457.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012215304-74673.gif)
(I)已知数列
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012215240-75259.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012215240-39259.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012215240-52291.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012215240-56830.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012215241-51834.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012215241-32810.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012215240-52291.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012215241-57100.gif)
(II) 已知数列
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012215240-75259.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012215242-59239.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012215242-24454.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012215242-33222.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012215242-81304.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012215242-20074.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012215242-20074.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012215242-19974.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012215243-14419.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012215243-80374.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012215243-81252.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012215243-78655.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012215244-57755.gif)
记
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012215221-34798.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012215221-13617.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012215222-67731.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012215222-27470.gif)
(I)求
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012215222-68044.gif)
(Ⅱ)求
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012215222-87618.gif)
(Ⅲ)已知数列
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012215222-71742.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012215223-73965.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012215222-71742.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012215223-87465.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012215223-99337.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012215223-11735.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012215224-14350.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012215224-95670.gif)
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