1 . 若
(
为正整数)是严格减数列,则
的取值范围为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b68bec51dc864518ab939aca5eb952f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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解题方法
2 . 数列
的前
项和为
,已知
,则下列说法正确的是( )
![](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)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ef94d87e3e7334454290bb1303b6ec8.png)
A.数列![]() |
B.数列![]() |
C.当![]() ![]() |
D.数列![]() |
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2023-07-18更新
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3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
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3 . 数列
的通项公式为
,则“
”是“
为递增数列”的( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5aa4e4a7fd5fb32270a529d7fee060b1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3495b39fea98064f17dc4016da3410e8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
A.充分不必要条件 | B.必要不充分条件 |
C.既不充分也不必要条件 | D.充要条件 |
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2023-01-18更新
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3卷引用:北京市十一学校2022-2023学年高一上学期第2学段数学III课程教与学诊断试题
北京市十一学校2022-2023学年高一上学期第2学段数学III课程教与学诊断试题天津市武清区杨村第一中学2023届高三下学期开学摸底测试数学试题(已下线)第01讲 数列的基本知识与概念(六大题型)(讲义)
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4 . 已知数列
的通项公式为
,则数列
的前n项和
最小时n的值是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c0f0748bd4f0aba4d81f7c9258620f46.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
A.4或5 | B.4 | C.5 | D.5或6 |
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2022-07-10更新
|
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4卷引用:四川省南充市2021-2022学年高一下学期期末数学(文科)试题
四川省南充市2021-2022学年高一下学期期末数学(文科)试题四川省南充市2021-2022学年高一下学期期末数学(理科)试题重庆市广益中学校2022-2023学年高二上学期10月月考数学试题(已下线)第01讲 数列的概念与简单表示法 (高频考点—精讲)-2
解题方法
5 . 数列
的通项公式为
,若
,则p的一个取值为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2522285e9d87a0120113d79b0c7a9369.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1254070260067f8bf2fec39a7d0c8f1.png)
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6 . 数列
满足
(
,n为正整数),则下列命题中真命题的个数是( )
①若数列
满足
,则
(
,n为正整数);
②若
(其中p、q、m、n为正整数),则
;
③一定存在常数d,使得
(
,n为正整数)都成立;
④一定存在常数q,使得
(
,n为正整数)都成立.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b03176c4370562907996ac85e82a1625.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10e468312d09c6563c9094b710a35a65.png)
①若数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/642a443e3315a7fb6489b01fad7e3215.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7fd3e65f0f4bf3e5fb6570df7fb60510.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10e468312d09c6563c9094b710a35a65.png)
②若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf8a7364bfd9a7d68195a31b4d245070.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c70ce72976846c69a4cb7d1b05fc6c95.png)
③一定存在常数d,使得
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eac16a1f12e59c39d7969b207926c315.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10e468312d09c6563c9094b710a35a65.png)
④一定存在常数q,使得
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a58430ae3f1a3988fc35288eb58f08c4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10e468312d09c6563c9094b710a35a65.png)
A.1个 | B.2个 | C.3个 | D.4个 |
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2022-06-28更新
|
331次组卷
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2卷引用:上海市实验学校2021-2022学年高一下学期期末数学试题
7 . 已知数列
是严格增数列,满足
,
,且
.则n的最大值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c6259e837ae77af00fa394a87a6e6436.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0439cd8ecc3f6ac2bf042e4a97fee7a8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdbf657b692a47e964c6ffc28f7688f2.png)
A.10 | B.11 | C.12 | D.13 |
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解题方法
8 . 已知正项数列
的前n项和为
,且
和
满足:
.
(1)求
的通项公式;
(2)设
,求
的前n项和
;
(3)在(2)的条件下,对任意
,
都成立,求整数m的最大值.
![](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/96abfe2da27a63e6affb19a0c80236d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62fdc2d2b5964199bc79269ebdbeec87.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d005409790b3192705a181b2c8e7dfed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1ae9a3b0b7aeb1545b65d91aa371b3c.png)
(3)在(2)的条件下,对任意
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e145b6046bc80d0ffecc61ac67c87ca1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dc555bfdcaf2bb5125410174daaffe6.png)
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解题方法
9 . 已知数列
满足
,
,则
的最小值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a5d64ed226b25de233c426ce8cabff9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b13a6e1d671215fc96e4bee3541d1096.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f23fa2431b385ab17303d9a8016d8ce1.png)
A.0 | B.![]() | C.![]() | D.3 |
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2022-05-10更新
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3卷引用:陕西省西安市长安区第一中学2021-2022学年高一下学期第一次月考数学试题
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10 . 已知在数列
中,
,则数列中最大项的值是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aec0dfc9f36aea6a0cef6386c8a06c4c.png)
A.107 | B.108 | C.![]() | D.109 |
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2022-05-06更新
|
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3卷引用:四川省德阳市什邡市什邡中学2021-2022学年高一下学期第二次月考数学试题