题目
题型:不详难度:来源:
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012102949-53034.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012102949-29036.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012102949-99558.png)
答案
解析
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012102949-53034.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012102949-54745.png)
核心考点
举一反三
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012102936-66502.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012102936-56272.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012102937-70250.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012102937-35685.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012102937-15418.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012102937-54543.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012102937-56248.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012102924-36078.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012102924-88559.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012102925-70770.png)
(1)求数列
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012102924-36078.png)
(2)若
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012102925-88840.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012102925-20680.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012102925-57562.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012102914-88162.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012102914-25841.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012102914-44869.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012102915-63670.png)
(1)求数列
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012102915-84646.png)
(2)设各项均不为零的数列
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012102915-75709.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012102915-52566.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012102916-97577.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012102915-75709.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012102916-19897.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012102915-75709.png)
(3)记数列
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012102916-95121.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012102914-44869.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012102916-66280.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012102917-42350.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012102917-82170.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012102917-95091.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012102907-10719.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012102908-35054.png)
(Ⅰ)计算
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012102908-70790.png)
(Ⅱ)猜想通项公式
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012102908-77455.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012102900-60893.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012102900-65403.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012102900-71768.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012102901-41176.png)
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