名校
解题方法
1 . 等差数列
满足![](https://staticzujuan.xkw.com/quesimg/Upload/formula/331e95093927765b3b4ef77a9c0591a9.png)
,则
的最大值为____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0acf4c64d3919d2cc0bd0a9953133714.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/331e95093927765b3b4ef77a9c0591a9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6afb7577911fa01ca4ad899a97eb7fab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
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11-12高三·上海奉贤·期末
解题方法
2 . (理)对于数列
,如果存在最小的一个常数
,使得对任意的正整数恒有
成立,则称数列
是周期为
的周期数列.设
,数列前
项的和分别记为
,则
三者的关系式_____________________
(文)已知数列
的通项公式为
,那么满足
的正整数
=________
![](https://img.xkw.com/dksih/QBM/2012/1/28/1570701930340352/1570701935681536/STEM/b75d70bcf01c4587bb33605541832a16.png?resizew=30)
![](https://img.xkw.com/dksih/QBM/2012/1/28/1570701930340352/1570701935681536/STEM/b35accbcb9ec44098bb9b48b2b34c40d.png?resizew=69)
![](https://img.xkw.com/dksih/QBM/2012/1/28/1570701930340352/1570701935681536/STEM/242c1e9b3af94fb4b441dfea03fb423b.png?resizew=64)
![](https://img.xkw.com/dksih/QBM/2012/1/28/1570701930340352/1570701935681536/STEM/b75d70bcf01c4587bb33605541832a16.png?resizew=30)
![](https://img.xkw.com/dksih/QBM/2012/1/28/1570701930340352/1570701935681536/STEM/b6c949e719a447c6b4025d9d5f129cad.png?resizew=15)
![](https://img.xkw.com/dksih/QBM/2012/1/28/1570701930340352/1570701935681536/STEM/fd112a7005f64d9383ee29ed3f59f033.png?resizew=180)
![](https://img.xkw.com/dksih/QBM/2012/1/28/1570701930340352/1570701935681536/STEM/f0e78e50590c4e74a83198192de3f310.png?resizew=45)
![](https://img.xkw.com/dksih/QBM/2012/1/28/1570701930340352/1570701935681536/STEM/8ba9867b78574fcd9d0af4ad65a8b8f5.png?resizew=66)
![](https://img.xkw.com/dksih/QBM/2012/1/28/1570701930340352/1570701935681536/STEM/8ba9867b78574fcd9d0af4ad65a8b8f5.png?resizew=66)
(文)已知数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e99bc30c7df18ec527142905327cb9b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9534ed1c74894c735ffa3c71df721343.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
您最近一年使用:0次