1 . 已知数列
满足
,且
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f5eb9b8f893dd71876349ad40724550.png)
_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/59b33897f206bf6e08dc4460aad97288.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad2da0ff9dc73d62f8162fc3de186150.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f5eb9b8f893dd71876349ad40724550.png)
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2022-04-29更新
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639次组卷
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3卷引用:重庆市西南大学附属中学校2021-2022学年高二下学期期中数学试题
名校
2 . 等差数列
中,
为其前n项和,若
,
,则
为____ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d471926f7b27322d90c82b9ce21d3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a9875b5a21e007035dbf079af4617d3b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b1d3a06ee3a948a439f482794c8540c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a48e81b54f78b96294295542b010dfb.png)
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名校
解题方法
3 . 将
个正实数排成
行
列(例:
表示第4行,第2列的数)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ec4c985594729aab68cbd2766ad363f.png)
其中每一行的数成等差数列,每一列的数成等比数列,并且所有的公比相等,已知![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f2ff885bcc411964ef7e2a95c88ca78.png)
求公比![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad0d99fef1aa4dbcc6dc7b30b7d2c9a9.png)
____ ,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed24c32765ea4c560ca323ad8d979104.png)
____ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dcff466eba4556626dcfdc09d4d480f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b6e6eaef3556ecc5bad7f9d41a00fcf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ec4c985594729aab68cbd2766ad363f.png)
其中每一行的数成等差数列,每一列的数成等比数列,并且所有的公比相等,已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f2ff885bcc411964ef7e2a95c88ca78.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0286255f6812e2cde27e264a9de487c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad0d99fef1aa4dbcc6dc7b30b7d2c9a9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed24c32765ea4c560ca323ad8d979104.png)
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名校
解题方法
4 . 已知数列
的前n项和
,则
的通项公式是__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/115da54f93de5e89d1e7f443fccb61f8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0881c3630315e115cfeb06187966dff1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
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2021-11-29更新
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1158次组卷
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3卷引用:重庆市第一中学2022届高三上学期期中数学试题
重庆市第一中学2022届高三上学期期中数学试题(已下线)专题4.3 求数列的通项-2021-2022学年高二数学特色专题卷(人教A版2019选择性必修第二册)黑龙江省绥化市肇东市第四中学校2022-2023学年高二上学期期末数学试题
5 . 已知数列
满足
,令
,设
的前
项和为
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3d433517d14291abf6a38f29e75b691.png)
______________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0fabfb944d91ce8a01e5fa656d5e432.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b25b075f3002d83c9bedb113dc04b4f1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1ae9a3b0b7aeb1545b65d91aa371b3c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3d433517d14291abf6a38f29e75b691.png)
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6 . 已知数列
满足:
,
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bcd5367f5c88db960f534311d3476ef5.png)
__________ .
![](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/9c9b6e51986fe5d7a7265e0e93adcb4d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73d489cc185a286f65f98eb8db510978.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bcd5367f5c88db960f534311d3476ef5.png)
您最近一年使用:0次
2021-11-27更新
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637次组卷
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4卷引用:重庆市巴蜀中学2021-2022学年高二上学期期中数学试题
重庆市巴蜀中学2021-2022学年高二上学期期中数学试题重庆市朝阳中学2021-2022学年高二上学期12月月考数学试题重庆市万州纯阳中学2021-2022学年高二上学期12月月考(B卷)数学试题(已下线)专题4.8 数列(能力提升卷)-2021-2022学年高二数学特色专题卷(人教A版2019选择性必修第二册)
7 . 在某个电子竞技平台中,
名同学在玩一种“数字智力”游戏.这些同学编号依次为1,2,3,…,
.在这个电子竞技平台的这种“数字智力”游戏中,每个同学会看到自己的一个数对,用
表示.游戏规则是:编号为
的同学看到自己的数对是
,且满足
.若在平台中告之编号为1的同学看到自己的数对是
,则编号为3的同学看到自己的数对是________ ;某位同学看到自己的数对告之其他同学为
,请你猜出这位同学看到的数对中的![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad0d99fef1aa4dbcc6dc7b30b7d2c9a9.png)
________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85023cdd46c46e9d70ec0ba1ca233f55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba87c564a222dc0e75705f390a8a8fdd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/589f502605166d96158b3f2c308ff9f8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dcadeb2fe7055d3489bd590adffd2bc3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/484644da7da7208d4b5848221e9c51b1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad0d99fef1aa4dbcc6dc7b30b7d2c9a9.png)
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2021高二·全国·专题练习
名校
8 . 在数列{an}中,a1=1,an=1+
(n≥2),则a5=________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b12e425534cbd8014ec8d2359a6de0b.png)
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2021-10-05更新
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369次组卷
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4卷引用:重庆市第七中学校2022届高三上学期期中数学试题
重庆市第七中学校2022届高三上学期期中数学试题(已下线)专题01 数列的概念及简单表示(知识串讲)-2020-2021学年高二数学重难点手册(数列篇,人教A版2019选择性必修第二册)1.1.1 数列的概念同步练习河北省高碑店市崇德实验中学2024届高三上学期9月月考数学试题
解题方法
9 . 已知数列
满足
,且
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3f7fda69e2b32b9ced2239f915fa59b.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e9645bd4d2002993b90ec6d48f9c04f7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b065334d8f60c49f4bd3d9f1373fe4cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e1f973dfef77371b06480f881dcebe0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3f7fda69e2b32b9ced2239f915fa59b.png)
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2020-12-27更新
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207次组卷
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3卷引用:重庆市巫溪县上磺中学2022-2023学年高二下学期半期考试(期中)数学试题
10 . 二进制数是用0和1两个数码来表示的数,它是现代信息技术中广泛应用的一种数制,它的基数为2,进位规则是“逢二进一”,借位规则是“借一当二”,它与十进制数可以互相转化,如二进制数1011(记为
)表示的十进制数为
,即
,设各项均为十进制数的数列
的通项公式为
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3f7fda69e2b32b9ced2239f915fa59b.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef0f3ff54189055e3dd6b7df6c00b5a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ecd8e3bcd890c3c37e932a68b01ff88.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8befff2d514d7507ad065154f082ed2d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef64b4fb40f963bf60cdfb03786fa30f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3f7fda69e2b32b9ced2239f915fa59b.png)
您最近一年使用:0次
2020-11-22更新
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222次组卷
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4卷引用:重庆市江津中学2021届高三(上)期中数学试题