名校
1 . 设
是等比数列,则“
”是“
为递增数列”的( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/93917fe0f85fb5ebd983c6337a375ca7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
A.充分而不必要条件 | B.必要而不充分条件 |
C.充分必要条件 | D.既不充分也不必要条件 |
您最近一年使用:0次
2023-05-25更新
|
520次组卷
|
2卷引用:北京市2023届高三高考模拟预测考试数学试题
名校
2 . 已知
是首项为正数,公比不为
的等比数列,
是等差数列,且
,那么( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e0262791cc14598c6fc5ed0937d0124.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d61ad11f1ded400099b874da0349b19.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2023-05-23更新
|
811次组卷
|
3卷引用:北京市第八十中学2023届高三热身考试数学试题
3 . 已知等比数列
的各项均为正数,
的前
项和为
,若
,
,则
的值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d471926f7b27322d90c82b9ce21d3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d471926f7b27322d90c82b9ce21d3d.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/e703fb4f4b8ae5afd4374738a11a1a32.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05a518f9cabe52a507226ea6cdcf9696.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e72adb45c60c2f63b46e65ff787302bf.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
4 . 已知数轴上两点
的坐标为
,现
两点在数轴上同时相向运动.点
的运动规律为第一秒运动
个单位长度,以后每秒比前一秒多运动
个单位长度;点
的运动规律为每秒运动
个单位长度.则点
相遇时在数轴上的坐标为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2db36b4497b911bc047253b832ae01c4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e63184599ff2a30141048f6ebe482791.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2db36b4497b911bc047253b832ae01c4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d91e07104b699c4012be2d26160976a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2db36b4497b911bc047253b832ae01c4.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
名校
5 . 已知等比数列
的前
项和为
,则下列结论中一定成立的是( )
![](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)
A.若![]() ![]() | B.若![]() ![]() |
C.若![]() ![]() | D.若![]() ![]() |
您最近一年使用:0次
2023-05-07更新
|
1050次组卷
|
5卷引用:北京市昌平区2023届高三二模数学试题
6 . 已知数列
中,
,
,
为其前
项和,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d471926f7b27322d90c82b9ce21d3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b065334d8f60c49f4bd3d9f1373fe4cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf30be8561814ff36e1dcf13be0baec7.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/614306cc3f34bdee4d5d885b79667645.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2023-05-05更新
|
999次组卷
|
3卷引用:北京市东城区2023届高三二模数学试题
名校
7 . 已知数列
的前n项和是
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5214be4ab4c116b6d8beb768db721cfc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/047dbd9ff686703cad03aa383e5fec21.png)
A.9 | B.16 | C.31 | D.33 |
您最近一年使用:0次
2023-05-05更新
|
1469次组卷
|
5卷引用:北京市朝阳区2023届高三二模数学试题
北京市朝阳区2023届高三二模数学试题北京卷专题16数列(选择题)(已下线)第04讲 数列的通项公式(练习)-1黑龙江省哈尔滨市第七十三中学校2024届高三上学期期中数学试题(已下线)专题4-1 数列通项及函数性质12种题型归类(讲+练)-【巅峰课堂】2023-2024学年高二数学热点题型归纳与培优练(人教A版2019选择性必修第二册)
名校
解题方法
8 . 已知等差数列
的前
项和为
,
,
,则
的最大值为( )
![](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/b13a6e1d671215fc96e4bee3541d1096.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9dcbb01acf4bd194eedaa4da7c77ba0d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
A.7 | B.6 | C.5 | D.4 |
您最近一年使用:0次
2023-05-05更新
|
1434次组卷
|
3卷引用:北京市海淀区2023届高三二模数学试题
名校
9 . 已知数列
的前
项和为
,若
,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/17fcc7d9be62ea071f25c60fd69509b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fbfc875ca919921e8f63a6fca648561b.png)
A.![]() | B.5 | C.7 | D.8 |
您最近一年使用:0次
2023-04-25更新
|
1633次组卷
|
4卷引用:北京市丰台区2023届高三二模数学试题
名校
10 . 数列
中,
,定义:使
为整数的数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
叫做期盼数,则区间
内的所有期盼数的和等于( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d471926f7b27322d90c82b9ce21d3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/398f487f599d2f17aef347dfa65b3d00.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d71af244d5c0c6b43917575d496b264.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/151cf9ce0a4700c7a3e196e7b30aec6c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3acc60058716eee7a013f532e7b17f6b.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2023-04-14更新
|
2913次组卷
|
17卷引用:北京市延庆区2023届高三一模数学试题
北京市延庆区2023届高三一模数学试题专题12压轴题汇总(10、15、21题)专题07数列北京卷专题16数列(选择题)(已下线)2023高考考前突破选填专题(北京)四川省成都市简阳市阳安中学2023届高三模拟训练(一)数学(文科)试题四川省绵阳南山中学2023届高三下学期高考热身考试数学(文)试题北京市第五十七中学2024届高三暑期检测(开学考试)数学试题广西梧州市苍梧中学2023届高三5月份高考数学模拟试题(已下线)模块七 第4套 迎接高考之必做基础热身题( 数列与立几)(已下线)数学(全国甲卷文科)(已下线)数学(全国甲卷理科)安徽省定远中学2023届高三下学期4月第三次检测数学试卷上海市行知中学2022-2023学年高二下学期5月月考数学试题上海市吴淞中学2022-2023学年高二下学期5月月考数学试题福建省厦门第一中学2024届高三上学期期中考试数学试题四川省绵阳市三台中学校2024届高三下学期第二学月测试理科数学试题