名校
1 . 等比数列
的首项为2,公比为3,前
项的和为
,若
的最小值为____ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fe229b24e2d56ff6b491725ceae4ff2f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b708c8dcb2d66eb2ce0b3718a9cd924a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/636bf16941136a9d7659cf461cf76a3d.png)
您最近一年使用:0次
2017-06-02更新
|
2553次组卷
|
4卷引用:江西省南昌市南昌县莲塘一中2018届直升班周末练试卷数学试题