1 . 设数列
的前
项和为
,若
,且对任意的正整数
都有
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d471926f7b27322d90c82b9ce21d3d.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/b065334d8f60c49f4bd3d9f1373fe4cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fdccc19b703b49c86b80422812cc5be4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e30a5a82ee0df77b7cf9ae75bd9107c4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b2778e2dadff4d91102e6046bb5def8.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2023-07-05更新
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272次组卷
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2卷引用:湖南省怀化市2022-2023学年高二下学期期末数学试题