题目
题型:不详难度:来源:
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009075902-17932.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009075902-59251.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009075902-68227.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009075902-17932.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009075902-17932.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009075902-68227.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009075902-59251.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009075902-17932.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009075902-17932.png)
答案
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009075902-28654.png)
解析
试题分析:设公比为
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009075903-18447.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009075903-81596.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009075903-50382.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009075902-59251.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009075903-48598.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009075903-63929.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009075903-25066.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009075903-78444.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009075904-33630.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009075904-40160.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009075904-95805.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009075904-96011.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009075904-26739.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009075904-26739.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009075902-17932.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009075905-72502.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009075905-84371.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009075902-28654.png)
核心考点
举一反三
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009075800-68018.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009075800-28862.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009075800-54285.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009075801-43296.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009075801-45336.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009075801-29373.png)
(1)求实数k的值;
(2)问数列
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009075800-68018.png)
(3)求出数列
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009075800-68018.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009075800-28862.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009075800-54285.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009075628-98125.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009075629-27064.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009075629-60163.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009075629-39788.png)
(1)若
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009075629-53325.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009075630-84977.png)
(2)是否存在
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009075630-84977.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009075628-98125.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009075630-84977.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009075612-32970.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009075612-78835.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009075612-71728.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009075613-24901.png)
A.1 | B.2 | C.3 | D.4 |
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009075548-52202.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009075548-66946.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009075548-77565.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009075549-48139.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009075549-80815.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009075549-38764.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009075549-60392.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009075550-76183.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009075550-50717.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009075549-60392.png)
A.8 | B.9 | C.8或9 | D.17 |
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009075428-94142.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009075428-70525.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009075429-66825.png)
(1)求
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009075429-61895.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009075429-97203.png)
(2)求数列
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009075428-94142.png)
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