记等比数列
的前n项和为Sn,若
,则
的公比为______
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76aef4cdcb5af742ce28003b7b6c8c20.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/023bbc13bcf0c9af0d95d3f905d76012.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76aef4cdcb5af742ce28003b7b6c8c20.png)
更新时间:2022-08-15 17:09:36
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【知识点】 等比数列通项公式的基本量计算
相似题推荐
填空题-单空题
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适中
(0.65)
【推荐1】已知数列
和
,设
为数列
的前
项和,满足
,且对任意
,都有
,若
,则数列
的所有项中的最小值为_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4be2164a2c67d6163faee87a10942bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43b7e7cd571c8cd141cbbfe5d0890bf6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4be2164a2c67d6163faee87a10942bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/039e4fe671d61e59b96ee525c9df43e8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d38b6286e5f74b604b9fb639c55d611f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/47502da290030106eb457bdd112509df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa711a3bfafdd9d58b2dd406e129ef8.png)
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填空题-单空题
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适中
(0.65)
名校
解题方法
【推荐2】设等比数列
满足:
,
,记
为
中在区间![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fdf8823613e6b620b2891a4c06e4b707.png)
中的项的个数,则数列
的前50项和![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b024dcba89b9bc12300583e25c1ed90.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d471926f7b27322d90c82b9ce21d3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6243dd554deeb1e4af03b490ee806fae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1275f5edaf807edc312c8ab2203aae71.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f64696f60c533ad95dc7890eb902741.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d471926f7b27322d90c82b9ce21d3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fdf8823613e6b620b2891a4c06e4b707.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/74d0aea7b7bcbd8bf1ef02c406f601ec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ad351773d8117faa128041a877bf2db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b024dcba89b9bc12300583e25c1ed90.png)
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