设数列
的前
项和
满足:
.则通项![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3f7fda69e2b32b9ced2239f915fa59b.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef982f10c272d383ae0671e67bfdd466.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3f7fda69e2b32b9ced2239f915fa59b.png)
2010高二·河南·竞赛 查看更多[1]
(已下线)2010年全国高中数学联赛河南省预赛(高二)试题
更新时间:2018-12-25 20:02:20
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【知识点】 数列通项公式求解
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适中
(0.65)
【推荐1】在数列
中,
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时,
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填空题-单空题
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适中
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【推荐2】一个数列的各项均为3或5,首项为3,且在第
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