名校
1 . 已知数列
,
,
,
成等差数列,
,
,
成等比数列,则
的值是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acbc6a613224461ade69362d46550474.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3edbd40e04e2a943051fa83d6e511add.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acbc6a613224461ade69362d46550474.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3edbd40e04e2a943051fa83d6e511add.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0d4723110426a65a5c0f96215e680e7.png)
A.![]() | B.![]() | C.![]() ![]() | D.![]() |
您最近一年使用:0次
2021-08-29更新
|
790次组卷
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7卷引用:浙江省嘉兴市第五高级中学2018-2019学年高一下学期期中数学试题
浙江省嘉兴市第五高级中学2018-2019学年高一下学期期中数学试题(已下线)选择性必修第二册全册数学检测题(A卷基础篇)-2021-2022学年高二数学同步单元AB卷 (人教A版2019选择性必修第一册+第二册,浙江专用) (已下线)4.3.1等比数列的概念(备作业)-【上好课】2021-2022学年高二数学同步备课系列(苏教版2019选择性必修第一册)(已下线)第02讲 等差数列-【帮课堂】2021-2022学年高二数学同步精品讲义(苏教版2019选择性必修第一册)甘肃省庆阳市宁县第二中学2022-2023学年高二上学期第一次月考数学试题福建省华安县第一中学2022-2023学年高二上学期第一次月考数学试题江苏省苏州市吴江区2022-2023学年高二上学期9月教学质量调研数学试题
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2 . 在等差数列
中,若
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/75e567e46d018666c27aa39777bf67ef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a944cf5b9342ac78a5c51bd7f6fb120c.png)
A.6 | B.10 | C.7 | D.5 |
您最近一年使用:0次
2021-02-09更新
|
1156次组卷
|
16卷引用:浙江省金华市东阳中学2019-2020学年高一下学期期中数学试题
浙江省金华市东阳中学2019-2020学年高一下学期期中数学试题黑龙江省佳木斯市第一中学2019-2020学年高一下学期第一学段考试理科数学试题黑龙江省佳木斯市第一中学2019-2020学年高一下学期第一学段考试文科数学试题北京市宣武外国语实验学校2021届高三上学期期中考试数学试题四川省广安市武胜县武胜烈面中学校2020-2021学年高一下学期期中数学试题(已下线)期末模拟题(三)-2021-2022学年高二数学同步单元AB卷 (人教A版2019选择性必修第一册+第二册,浙江专用)第四章数列单元检测卷(A卷基础篇)-2021-2022学年高二数学同步单元AB卷 (人教A版2019选择性必修第一册+第二册,浙江专用)北京市西城区北京师范大学第二附属中学2023-2024学年高二下学期期中考试数学试题2020届北京市怀柔区高三一模数学试题2020届北京怀柔区高三下学期适应性练习数学试题重庆市育才中学2019-2020学年高一下学期期末数学试题(已下线)专题08 等差数列-2020年高考数学母题题源解密(北京专版)天津市静海区瀛海学校2020-2021学年高三上学期10月检测数学试题广东省中山市2020-2021学年高二上学期期末数学试题北京市第四十三中学2020-2021学年高二下学期第一次月考数学试题内蒙古包头市第四中学2020-2021学年高一下学期4月月考数学试题
3 . 已知等差数列
的公差为
,前
项和记为
,若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c98c59cd4749afdd21e73529fc84323.png)
__________ ,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7999465d0e871febde66296a0cbf058c.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c02bc0c74292b1e8f395f90935d3174.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b126010435c46a52c0b7de93eeec84da.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c98c59cd4749afdd21e73529fc84323.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7999465d0e871febde66296a0cbf058c.png)
您最近一年使用:0次
名校
4 . 等比数列
中,若
,
,则公比![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad0d99fef1aa4dbcc6dc7b30b7d2c9a9.png)
______ ;已知等差数列
的前
项和为
,若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc4e70b360f988fdbd92300ab22c4613.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/259b2e755105c0ee479eabf7265a76a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f1e55cb07aa8350755e0e4f54ca0fe3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad0d99fef1aa4dbcc6dc7b30b7d2c9a9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49d6db8d2150b30e815ce0f695a5ca03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc4e70b360f988fdbd92300ab22c4613.png)
您最近一年使用:0次
5 . 已知等比数列
中,
,数列
是等差数列,且
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff4111a4466a00517f4a6b804518d7be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd9c77ce4d6b6f7c75a8b84b5c3c6c0c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff083977477d22ed6bb148353e68b5f4.png)
A.3 | B.6 | C.7 | D.8 |
您最近一年使用:0次
2020-11-14更新
|
716次组卷
|
4卷引用:浙江省衢州五校2020-2021学年高二上学期期中联考数学试题
浙江省衢州五校2020-2021学年高二上学期期中联考数学试题(已下线)【新东方】416江西宜春市2021届高三上学期数学(文)期末试题(已下线)5.3.1 等比数列-2020-2021学年高二数学课时同步练(人教B版2019选择性必修第三册)
6 . 已知等差数列
的前
项和为
,
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac4715710f9dbb1454acd182f477ac0e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc4e70b360f988fdbd92300ab22c4613.png)
A.54 | B.63 | C.72 | D.81 |
您最近一年使用:0次
解题方法
7 . 已知
为等差数列
的前n项和,若
,则k的值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f2fc1eaf5f24e88e5c822e3f01050c55.png)
A.13 | B.14 | C.15 | D.16 |
您最近一年使用:0次
8 . 数列
是等差数列,
,数列
的前
项和为
,若
,则
,
,
,
中最小的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f34924aeb9b3446b4df1136875f6cfe5.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/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/93698ac776d5daa4a9c4e0375545325b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc25a65d104597a8459a8574dcbff91c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/973d17cd50a4905164d29b8449fafd52.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d7023d3a92d97b12ca99cc05f105115.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba48780e63a87aaf7f1d7fa29dd56b5c.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
9 . 在等差数列
中,
,则公差![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c98c59cd4749afdd21e73529fc84323.png)
___________ ,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81e563b8d1da5930696a0e6d17d2d1df.png)
___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44647cddc63a4a34c6395bd442f2af87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c98c59cd4749afdd21e73529fc84323.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81e563b8d1da5930696a0e6d17d2d1df.png)
您最近一年使用:0次
解题方法
10 . 在公差不为零的等差数列
中,
,则
的最小值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/697c808d9a1e485b3137cd7a138b78f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd93ee03569849295ebde055410d1b84.png)
A.![]() | B.![]() | C.![]() | D.1 |
您最近一年使用:0次