名校
1 . 在等差数列
中,
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f9d3d7d81133563d61d475292d2b36d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0382b4a2ab0657d2d6830bb6be2b17b6.png)
A.9 | B.11 | C.13 | D.15 |
您最近一年使用:0次
2023-12-28更新
|
2276次组卷
|
12卷引用:北京市东直门中学2023-2024学年高一上学期期中考试数学试题
北京市东直门中学2023-2024学年高一上学期期中考试数学试题北京市海淀区2023届高三一模(期中)数学试题北京市朝阳区北京拔萃双语学校2022-2023学年高二下学期期中测试数学试题广东省广州市从化区从化中学2023届考前仿真最后模拟数学试题北京市第五十七中学2022-2023学年高二下学期期中测试数学试题江西省湖口中学2022-2023学年高二下学期7月期末考试数学试题广西钦州市灵山县那隆中学2022-2023学年高二下学期期中数学试题北京市一零一中学2023-2024学年高二上学期期末考试数学试卷(已下线)5.2.1等差数列(分层练习,9大题型)-2023-2024学年高二数学同步精品课堂(人教B版2019选择性必修第三册)宁夏吴忠市青铜峡市宁朔中学2023-2024学年高二下学期3月月考数学试题黑龙江省大庆市大庆中学2023-2024学年高二下学期4月月考数学试题(已下线)4.2.1 等差数列的概念——课堂例题
2 . 已知函数
,正实数
是公差为正数的等差数列,且满足
.若实数d是方程
的一个解,那么下列判断不正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d0cd1b75a30ddf7a655d4354425be60.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d90d7f054e8f0346479e1999622f11cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13fd5a8c2b5647f1337e72a109ac93e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a67a4813d1e3fdb0fed4da21fc8d3e1.png)
A.函数![]() ![]() ![]() |
B.![]() |
C.![]() |
D.![]() |
您最近一年使用:0次
名校
解题方法
3 . 已知公差不为零的等差数列
,首项
,若
成等比数列,记
,则数列
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/738dc67ac3b150252a964d1ffe3dfa63.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/127b4bb2cecae98450c06a47b076c693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06d27708bf2c7207c63b9e64c1fee69d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de777c4e44546bcfe26ad5b6bb418052.png)
A.有最小项,无最大项 | B.有最大项,无最小项 |
C.无最大项,无最小项 | D.有最大项,有最小项 |
您最近一年使用:0次
4 . 已知
为等差数列,前
项和为
,若
,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/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc3627e4bff803df47d958c49bf3e879.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3f7fda69e2b32b9ced2239f915fa59b.png)
您最近一年使用:0次
名校
5 . 一个凸多边形的最小内角为
,其他内角依次增加
,则
的值等于( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67574d7f0bcea29fdbf6efbc68f282ba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdb0aa8a61380228e285f3b5c7b74c47.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
A.6或12 | B.6 | C.8 | D.12 |
您最近一年使用:0次
名校
解题方法
6 . 已知等差数列
中,
,
,则数列
的前5项和为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12512ece96c59b86d189818f1e5310fa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39c1a7763d9b20e8026bb9b00668299c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
A.35 | B.40 | C.45 | D.80 |
您最近一年使用:0次
名校
解题方法
7 . 设等差数列
的前
项和为
,且
.
(1)求数列
的通项公式;
(2)若
,数列
的前
项和为
,若
对
恒成立,求实数
的取值范围;
(3)若
,问是否存在正整数
,使得
成等差数列?若存在,请求出所有符合条件的数组
;若不存在,请说明理由.
![](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/f249242077986fc9a4af90f543580d11.png)
(1)求数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/216876de04325fd250c38c485cbc34b7.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/6356618c3a678d4fddef846375a8edbf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1ba8c95ca154843e2822b2b733852ce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b5b75f700f46768816ae4e6198e9faf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3de6ec065a13f446930703f87348a197.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92ed8488ded5db3fccefbfdd5ea226c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/698c4d4e50062b4a7dd70fe1b4ab4fd7.png)
您最近一年使用:0次
名校
8 . 已知等差数列
的前
项和为
,
,
.
(1)求
的通项公式;
(2)求
的最小值.
![](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/65c42652d6d36a308c8d1a139fd56354.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a04747e6fbdfdec7db1909e1b112088d.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
您最近一年使用:0次
名校
9 . 在等差数列
中,
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2b7f5bc94ef954505da694bad353cc9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef354e5c5ff828cc8d27c71badd40f98.png)
A.9 | B.6 | C.8 | D.10 |
您最近一年使用:0次
2023-07-18更新
|
256次组卷
|
2卷引用:甘肃省兰州市城关区兰州第一中学2022-2023学年高一下学期期末数学试题
解题方法
10 . 设数列
为等差数列,已知
,
,
(1)求
;
(2)设
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8a0eecb5b800fce9ae10aed86ffee62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5b0da4fcbf9ec484dd9444a18609065.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96abfe2da27a63e6affb19a0c80236d9.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f53c3c215ca96fc784b8d7878837378f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/836d698e347d72b80820985bd1e1872d.png)
您最近一年使用:0次