题目
题型:不详难度:来源:
设数列
![](http://img.shitiku.com.cn/uploads/allimg/20191010/20191010235706-37664.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191010/20191010235706-27761.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191010/20191010235707-55031.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191010/20191010235707-37492.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191010/20191010235707-66240.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191010/20191010235707-55806.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191010/20191010235707-24226.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191010/20191010235708-67789.png)
(1)求
![](http://img.shitiku.com.cn/uploads/allimg/20191010/20191010235708-19485.png)
(2)若数列
![](http://img.shitiku.com.cn/uploads/allimg/20191010/20191010235706-37664.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191010/20191010235708-90245.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191010/20191010235708-67581.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191010/20191010235714-55973.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191010/20191010235714-40388.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191010/20191010235714-99311.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191010/20191010235715-84213.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191010/20191010235715-53561.png)
(3)设数列
![](http://img.shitiku.com.cn/uploads/allimg/20191010/20191010235715-70102.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191010/20191010235715-20250.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191010/20191010235716-79330.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191010/20191010235715-70102.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191010/20191010235706-27761.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191010/20191010235716-72432.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191010/20191010235716-15251.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191010/20191010235716-39932.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191010/20191010235716-72432.png)
答案
![](http://img.shitiku.com.cn/uploads/allimg/20191010/20191010235716-73075.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191010/20191010235717-61932.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191010/20191010235717-84670.png)
(3)
![](http://img.shitiku.com.cn/uploads/allimg/20191010/20191010235716-79330.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191010/20191010235717-47633.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191010/20191010235716-72432.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191010/20191010235717-47633.png)
解析
核心考点
试题【(本小题满分13分)设数列的前项和为,点在直线上,(为常数,,).(1)求;(2)若数列的公比,数列满足,,,求证:为等差数列,并求;(3)设数列满足,为数列的】;主要考察你对等差数列等知识点的理解。[详细]
举一反三
![](http://img.shitiku.com.cn/uploads/allimg/20191010/20191010235636-48311.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191010/20191010235637-18061.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191010/20191010235637-36527.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191010/20191010235637-93038.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191010/20191010235637-39010.png)
(1)求数列
![](http://img.shitiku.com.cn/uploads/allimg/20191010/20191010235636-48311.png)
(2)若数列
![](http://img.shitiku.com.cn/uploads/allimg/20191010/20191010235638-49598.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191010/20191010235638-39569.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191010/20191010235638-49598.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191010/20191010235637-18061.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191010/20191010235638-10196.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191010/20191010235548-57544.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191010/20191010235549-66503.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191010/20191010235549-65372.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191010/20191010235549-23907.png)
(I)求数列
![](http://img.shitiku.com.cn/uploads/allimg/20191010/20191010235548-57544.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191010/20191010235549-43109.png)
(II)求数列
![](http://img.shitiku.com.cn/uploads/allimg/20191010/20191010235550-37256.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191010/20191010235550-66271.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191010/20191010235437-42103.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191010/20191010235438-70815.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191010/20191010235438-65731.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191010/20191010235438-39632.png)
A.2012 | B.1006 | C.-1006 | D.-2012 |
![](http://img.shitiku.com.cn/uploads/allimg/20191010/20191010235318-16658.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191010/20191010235319-90264.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191010/20191010235319-71262.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191010/20191010235318-16658.png)
A.![]() | B.![]() | C.![]() | D.![]() |
![](http://img.shitiku.com.cn/uploads/allimg/20191010/20191010235143-75346.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191010/20191010235143-41722.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191010/20191010235144-55647.png)
(1)求
![](http://img.shitiku.com.cn/uploads/allimg/20191010/20191010235143-75346.png)
(2)求数列
![](http://img.shitiku.com.cn/uploads/allimg/20191010/20191010235144-67008.png)
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