已知
是等比数列,
是其前
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/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ced4e381e8c3336848b8c436dbc584f3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87a73f9d15255bd1599d7a6591a63a2a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc858b7a95c5006a44067022da09f667.png)
20-21高三上·内蒙古赤峰·阶段练习 查看更多[2]
内蒙古赤峰市中原金科2020-2021学年高三大联考数学 (文科) 试题(已下线)高二数学开学摸底考02(上海专用)(测试范围:必修三+选修一)-2023-2024学年高二数学下学期开学摸底考试卷
更新时间:2020-11-09 17:22:16
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填空题-单空题
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适中
(0.65)
【推荐2】在等比数列
中,填写下表.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
题号 | ||||
(1) | 3 | |||
(2) | 4 | |||
(3) | 4 | 4 | 256 | |
(4) | 3 | 5 | 48 | |
(5) | 3 | 2 | 24 |
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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1】已知数列
满足
.给出定义:使数列
的前
项和为正整数的![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
叫做“好数”,则在
内的所有“好数”的和为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d6788b5edffbad8ba9a0b40752400b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1306375a0fec4eb4bf3f07992f6716e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ede949a2fe7bf9f1f98f5457d408b41d.png)
您最近一年使用:0次
填空题-单空题
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适中
(0.65)
解题方法
【推荐2】在正数数列
中,
,且点
在直线
上,则前
项和
等于__ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b065334d8f60c49f4bd3d9f1373fe4cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72a609735bd6a67c2cf31c5d71700407.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f5212f9b39ca710f0349e1b3652bc6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
您最近一年使用:0次