名校
1 . 正项等比数列
的前n项和为
,
,
,则
等于( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c0863cf59114f905e9ad3debc5572792.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bbddd4c506ce0cb04dfb117415c682f1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c273b7656ae822a6d802c09396e49bcd.png)
A.9 | B.72 | C.70 | D.48 |
您最近一年使用:0次
名校
2 . 在正项等比数列
中,
为其前n项和,若
,则
的值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d471926f7b27322d90c82b9ce21d3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e500803b96712d93f77f1883d2823bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a27c112387e56c976489fa484c0d48f.png)
A.10 | B.18 | C.36 | D.40 |
您最近一年使用:0次
2024-01-15更新
|
1242次组卷
|
3卷引用:广西南宁市2023-2024学年高二上学期教学质量调研数学试题