题目
题型:不详难度:来源:
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013071756-76241.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013071756-24957.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013071757-13402.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013071757-48844.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013071757-80082.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013071757-62677.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013071757-23136.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013071758-38957.gif)
A.![]() | B.![]() | C.![]() | D.![]() |
答案
解析
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013071759-53007.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013071757-23136.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013071759-21592.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013071759-74543.gif)
核心考点
举一反三
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013071727-41954.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013071727-37454.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013071728-32642.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013071728-97834.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013071728-63284.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013071728-18532.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013071729-16169.gif)
A.2 | B. 3 | C.2和3 | D.2和-3 |
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013071715-83467.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013071715-39929.gif)
A.250 | B.±250 | C.100 | D.±100 |
已知
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013071654-66877.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013071654-81684.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013071654-37757.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013071654-75169.gif)
(1) 若
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013071654-51008.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013071655-67958.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013071655-96439.gif)
(2) 找出所有数列
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013071654-66877.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013071654-37757.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013071655-48550.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013071655-48485.gif)
(3) 若
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013071656-83451.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013071656-76565.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013071654-66877.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013071656-76565.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013071654-37757.gif)
设数列
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013071634-94113.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013071635-65270.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013071635-14018.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013071635-58741.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013071635-54796.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013071635-72676.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013071636-95508.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013071636-51280.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013071636-26045.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013071636-75588.gif)
(1)求数列
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013071634-94113.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013071635-54796.gif)
(2)记
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013071637-70718.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013071637-42360.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013071637-20414.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013071637-78834.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013071626-44497.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013071626-37289.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013071626-11811.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013071627-26466.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013071627-65219.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013071626-37289.gif)
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