1 . 数列
的前
项的和
为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e88822362649ac2f098e672264f2b77.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/151e5633a5d0cc30b254167e3dda5803.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63b5576e5d9b20988390682e42195df1.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2021-08-09更新
|
296次组卷
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2卷引用:青海省海南州高级中学、贵德中学2020-2021学年高一下学期期中联考数学试题
2 . 已知数列
的前
项和为
,且
,
,那么
的值为( )
![](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/b065334d8f60c49f4bd3d9f1373fe4cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df6dfb63b92dc2ffc8a0f51183c58bdf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08c9965a04c2a6de04e949a15762f372.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2020-10-10更新
|
230次组卷
|
3卷引用:青海玉树州三校(二高、三高、五高)2021-2022学年高一下学期期末考试数学试题