1 . 已知数列
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)
A.若![]() ![]() | B.若![]() ![]() |
C.若![]() ![]() | D.若![]() ![]() |
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2 . 设
是数列
的前
项和,
,则( )
![](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/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/206b5417761fed51924910c494b2eff8.png)
A.![]() |
B.数列![]() |
C.当![]() ![]() |
D.数列![]() ![]() |
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解题方法
3 . 下列关于数列
结论正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
A.若前![]() ![]() ![]() |
B.若![]() ![]() |
C.若![]() ![]() |
D.若![]() ![]() |
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4 . 已知集合
,
,集合
,将集合C中所有元素从小到大依次排列为一个数列
,
为数列
的前n项和,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0643864e940f406377f191b5600aa3d1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/371629b1c51b60607b01b966da183508.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee8f1df735a4480e538fd1d067fbd577.png)
![](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/83cf38189d5cbf627d2b82ac0eb76006.png)
A.![]() |
B.![]() |
C.![]() |
D.若存在![]() ![]() |
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2023-05-26更新
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3卷引用:湖北省武汉市华中师范大学第一附属中学2023届高三下学期5月压轴卷数学试题(一)
湖北省武汉市华中师范大学第一附属中学2023届高三下学期5月压轴卷数学试题(一)(已下线)高二下学期期末押题卷(集合和逻辑用语,不等式,函数导数,数列,统计案例和随机变量及其分布列)山东省德州市第一中学2023-2024学年高三上学期10月月考数学试题
名校
解题方法
5 . 设数列
的前n项和为
,
,且
,则( )
![](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/b065334d8f60c49f4bd3d9f1373fe4cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e62d941a924ffae8bc28492f261dd52.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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2023-05-11更新
|
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2卷引用:湖北省荆州市2022-2023学年高二下学期期中数学试题
6 . 在如图所示的数表中,第1行是从1开始的正整数,从第2行开始每个数是它肩上两个数之和,则( )
![](https://img.xkw.com/dksih/QBM/editorImg/2023/4/23/11841439-34ff-47be-acb4-6adaff142f9f.png?resizew=131)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/4/23/11841439-34ff-47be-acb4-6adaff142f9f.png?resizew=131)
A.第5行第1个数为48 |
B.第2023行第1个数为![]() |
C.第2023行的数从左到右构成公差为![]() |
D.第2023行第2023个数为![]() |
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2023-04-21更新
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3卷引用:湖北省部分学校2022-2023学年高二下学期期中联考数学试题
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解题方法
7 . 已知数列
的前
项和
满足
,
,且
,
,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/f790874e9817f155cafe055c1d3cda33.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f5c62f6f57cb86e3b2e3719d9f6caa9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88199a83552b38875bdefc71f71f728e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f5c62f6f57cb86e3b2e3719d9f6caa9.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)
A.数列![]() | B.数列![]() |
C.![]() | D.![]() |
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5卷引用:湖北省宜昌市协作体2022-2023学年高二下学期期中联考数学试题
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8 . 如图是瑞典数学家科赫在1904年构造的能够描述雪花形状的图案.图形的作法是:从一个正三角形开始,把每条边分成三等份,然后以各边的中间一段为底边分别向外作正三角形,再去掉底边.反复进行这一过程,就得到一条“雪花”状的曲线,若原正三角形边长为1,记第
个图中图形的边数为
,第
个图中图形的周长为
,则下列命题正确的是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2023/4/17/3823f3ee-b3d4-4046-8f27-c7182978bf6f.png?resizew=347)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96abfe2da27a63e6affb19a0c80236d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/686ece75006ad358f23314dc8a246e11.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/4/17/3823f3ee-b3d4-4046-8f27-c7182978bf6f.png?resizew=347)
A.![]() | B.![]() |
C.![]() | D.数列![]() ![]() ![]() |
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|
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6卷引用:湖北省孝感市2022-2023学年高二下学期期中联考数学试题
名校
解题方法
9 . 已知数列
满足
,其中
,
为数列
的前
项和,则下列四个结论中,正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a54db1d958e5d4b7a2983b78f7b76db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e8132326dd24b34b124209664ae26f7a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
A.数列![]() ![]() |
B.数列![]() |
C.![]() |
D.若对于任意的![]() ![]() ![]() |
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3卷引用:湖北省部分高中联考协作体2022-2023学年高二下学期期中数学试题
10 . 如图,有一列曲线
,
,
,
,
,且
是边长为6的等边三角形,
是对
进行如下操作而得到:将曲线
的每条边进行三等分,以每边中间部分的线段为边,向外作等边三角形,再将中间部分的线段去掉得到
,记曲线
的边长为
,周长为
,则下列说法正确的是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2023/4/16/48c957bd-4d47-4b61-bc16-85fd5a0bd938.png?resizew=549)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/deebd2c36a5e644a566f1980091359bd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/89e32039addb008103a2a8344225214a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/daa5e9bd516f6282483b92cfe6074623.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e00d8f90655e6341907aa9c7c62d4398.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/daa5e9bd516f6282483b92cfe6074623.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/deebd2c36a5e644a566f1980091359bd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7a782bd6947ee3a8e0cf6d730ff4fd3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf397f18a476bd5de7ce5c4ffa96b969.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/452b9bcf720355d0678d62cbf6857ffe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7a782bd6947ee3a8e0cf6d730ff4fd3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0313e191529514224363f6eb3f1f734a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96abfe2da27a63e6affb19a0c80236d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c59e7c7a84a4bdb959e95536d0404ceb.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/4/16/48c957bd-4d47-4b61-bc16-85fd5a0bd938.png?resizew=549)
A.![]() | B.![]() |
C.在![]() ![]() | D.在![]() ![]() |
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