名校
1 . 已知各项均为正项的等比数列
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0382b4a2ab0657d2d6830bb6be2b17b6.png)
________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/812c0dd75c70e00828b64fca352c802b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0382b4a2ab0657d2d6830bb6be2b17b6.png)
您最近一年使用:0次
2021-08-06更新
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462次组卷
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2卷引用:北京市平谷区2020-2021学年高二下学期期末数学试题
名校
2 . 已知数列
是递增的等比数列,
,
,则数列
的前
项和等于__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6fa3a7ce62e7bf557d9e1bf77c8dac0c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/31cf05c2e3af4049a102352932214a7e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f8c4c029e552954bd493b49aeab82d5.png)
您最近一年使用:0次
2017-11-13更新
|
1423次组卷
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2卷引用:北京市平谷区2016—2017高三第二学期质量监控数学(理)试题