题目
题型:不详难度:来源:
![](http://img.shitiku.com.cn/uploads/allimg/20191007/20191007232558-54450.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191007/20191007232559-53673.png)
答案
![](http://img.shitiku.com.cn/uploads/allimg/20191007/20191007232559-18729.png)
解析
![](http://img.shitiku.com.cn/uploads/allimg/20191007/20191007232559-95289.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191007/20191007232559-55977.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191007/20191007232559-53673.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191007/20191007232559-18729.png)
核心考点
试题【观察数列,写出该数列的一个通项公式=________.】;主要考察你对数列的概念与表示方法等知识点的理解。[详细]
举一反三
![](http://img.shitiku.com.cn/uploads/allimg/20191007/20191007232549-67650.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191007/20191007232549-51243.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191007/20191007232549-45994.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191007/20191007232549-70392.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191007/20191007232550-60024.png)
A.![]() | B.![]() | C.![]() | D.![]() |
![](http://img.shitiku.com.cn/uploads/allimg/20191007/20191007232515-69615.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191007/20191007232515-22297.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191007/20191007232515-27689.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191007/20191007232515-79627.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191007/20191007232515-36083.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191007/20191007232516-98079.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191007/20191007232516-56822.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191007/20191007232516-56822.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191007/20191007232516-10557.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191007/20191007232517-94861.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191007/20191007232517-72888.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191007/20191007232517-60191.png)
(Ⅰ)若数列
![](http://img.shitiku.com.cn/uploads/allimg/20191007/20191007232517-43154.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191007/20191007232517-53340.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191007/20191007232518-47436.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191007/20191007232518-16106.png)
(Ⅱ)证明存在唯一的数列
![](http://img.shitiku.com.cn/uploads/allimg/20191007/20191007232516-10557.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191007/20191007232516-56822.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191007/20191007232516-10557.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191007/20191007232518-86374.png)
(Ⅲ)若数列
![](http://img.shitiku.com.cn/uploads/allimg/20191007/20191007232516-10557.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191007/20191007232516-56822.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191007/20191007232518-86374.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191007/20191007232518-36244.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191007/20191007232519-57032.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191007/20191007232519-75054.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191007/20191007232519-35395.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191007/20191007232519-32766.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191007/20191007232323-69913.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191007/20191007232323-39056.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191007/20191007232323-67818.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191007/20191007232324-82485.png)
13+23+33+43=(1+2+3+4)2,……试猜想13+23+33+…+n3= (
![](http://img.shitiku.com.cn/uploads/allimg/20191007/20191007232249-10213.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191007/20191007232158-83990.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191007/20191007232158-93545.png)
(1)求
![](http://img.shitiku.com.cn/uploads/allimg/20191007/20191007232159-82585.png)
(2)猜想
![](http://img.shitiku.com.cn/uploads/allimg/20191007/20191007232159-55531.png)
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