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/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/346fcaef5869302b49901aae54406d66.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07035ee4bc362664789f039cf41c156a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a27c112387e56c976489fa484c0d48f.png)
A.10 | B.20 | C.30 | D.40 |
2024·江苏扬州·模拟预测 查看更多[3]
江苏省扬州市仪征市四校202届高三下学期4月联合学情检测数学试卷(已下线)4.3.2等比数列的前n项和公式(1)(已下线)专题06 等差数列与等比数列常考题型归类--高二期末考点大串讲(人教B版2019选择性必修第三册)
更新时间:2024-05-16 17:54:16
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解题方法
【推荐1】设正项等比数列
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【推荐2】已知正项等比数列
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