题目
题型:不详难度:来源:
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009035110-38792.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009035110-14956.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009035111-90279.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009035111-18650.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009035110-38792.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009035111-41918.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009035111-72888.png)
答案
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009035112-37033.png)
解析
试题分析:
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009035112-51609.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009035112-31587.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009035112-44194.png)
因此
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009035113-89804.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009035113-44878.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009035110-38792.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009035113-57831.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009035114-30208.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009035114-71074.png)
核心考点
举一反三
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009035013-21132.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009035013-64423.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009035014-93929.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009035014-90910.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009035014-73397.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009035014-93929.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009035014-94768.png)
(1)求数列
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009035013-21132.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009035014-90910.png)
(2)设第
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009035015-56304.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009035015-20015.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009035015-56304.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009035015-84901.png)
(注:
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009035015-64516.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009035016-69509.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009035016-87419.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009034919-53597.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009034919-51124.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009034920-72307.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009034920-32492.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009034919-53597.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009034920-44203.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009034920-62513.png)
A.![]() | B.![]() | C.![]() | D.![]() |
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009034905-43604.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009034906-32030.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009034906-45923.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009034906-27574.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009034906-33216.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009034906-63824.png)
(1)求数列
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009034905-43604.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009034906-27574.png)
(2)记
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009034906-74630.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009034907-68851.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009034907-45838.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009034907-36424.png)
(注:
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009034907-15240.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009034908-35427.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009034908-17792.png)
A.b11=1 | B.b12=1 | C.b13=1 | D.b14=1 |
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009034843-80788.jpg)
A.1009×2011 | B.1009×2010 |
C.1009×2009 | D.1010×2011 |
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