名校
解题方法
1 . 定义
,
,
,
,
,
,
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/413f53fd52acb12afc3b22899e5f1311.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4cb42efdaa9efe02ab94ede8cb12e7fc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c36c05c8109f44c1b22eb0a7c19f222f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/debc50b26fd16d39153b07ab09c1db53.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab9598c7d0a3d7e48f7a8ad0f16ba3f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c6675affd8de8e10a5cb6f29b3f1f8e5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da804d6750f6d0a511f60201ceb40dee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/679401be6da078a518f95f9211dff17b.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2 . 已知递增数列
的各项均为正整数,且其前
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.存在公差为1的等差数列![]() ![]() |
B.存在公比为2的等比数列![]() ![]() |
C.若![]() ![]() |
D.若![]() ![]() |
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名校
解题方法
3 . 已知数列
是各项为正数的等比数列,公比为q,在
之间插入1个数,使这3个数成等差数列,记公差为
,在
之间插入2个数,使这4个数成等差数列,公差为
,在
之间插入n个数,使这
个数成等差数列,公差为
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c0158862238e250d2a2598b7d4ecd148.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5edf900c810371fb21297c15f86d8743.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fe61d313eeca8ba47478a9de40540db8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b3ca6aa53687236f02b85c9a25b382c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d514eb8dff80d4dc3f39de516b63b846.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3468a665ac713ab7b400c672f19650a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82e260b088f071983f254ce8f5163fcd.png)
A.当![]() ![]() | B.当![]() ![]() |
C.当![]() ![]() | D.当![]() ![]() |
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河南省新乡市第一中学2022-2023学年高二下学期3月月考数学试题安徽省蚌埠市第二中学2023-2024学年高二上学期12月月巩固检测数学试题浙江省金华十校2022-2023学年高二上学期期末数学试题(已下线)第4章 数列 单元综合检测(重点)-2023-2024学年高二数学同步精品课堂(沪教版2020选择性必修第一册)(已下线)第4章 数列 (单元重点综合测试)-2023-2024学年高二数学单元速记·巧练(沪教版2020选择性必修第一册)单元测试B卷——第四章 数列上海市崇明区2023届高三4月二模数学试题(已下线)数学(江苏卷)(已下线)专题05 数列(已下线)专题06 数列及其应用(已下线)专题11 押全国卷(理科)第4、8题 数列(已下线)专题10 等比数列单调性(已下线)【练】 专题7 等比数列与等差数列的综合问题(已下线)【练】专题1 数列的单调性问题
4 . 下列数列是递增数列的是( )
A.![]() | B.![]() | C.![]() | D.![]() |
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5 . 数列
依次为:1,
,
,
,
,
,
,
,
,
,
,
,
,
,
,
,
,
,…,其中第一项为
,接下来三项均为
,再接下来五项均为
,依此类推.记
的前
项和为
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4dac452fbb5ef6dd653e7fbbef639484.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4dac452fbb5ef6dd653e7fbbef639484.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4dac452fbb5ef6dd653e7fbbef639484.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3ffd5c35bba71ea54c28622b6cf505d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3ffd5c35bba71ea54c28622b6cf505d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3ffd5c35bba71ea54c28622b6cf505d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3ffd5c35bba71ea54c28622b6cf505d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3ffd5c35bba71ea54c28622b6cf505d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1985174e05ad371e13cf24d244423da4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1985174e05ad371e13cf24d244423da4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1985174e05ad371e13cf24d244423da4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1985174e05ad371e13cf24d244423da4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1985174e05ad371e13cf24d244423da4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1985174e05ad371e13cf24d244423da4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1985174e05ad371e13cf24d244423da4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/158b045c6172c4178d7aa52083e1489f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/158b045c6172c4178d7aa52083e1489f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d5296c0056db0e2b5331c9b9a6d45962.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4dac452fbb5ef6dd653e7fbbef639484.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3ffd5c35bba71ea54c28622b6cf505d.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)
A.![]() | B.存在正整数![]() ![]() |
C.![]() | D.数列![]() |
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