名校
1 . 已知数列
是公差为
的等差数列,其前
项和为
,若
,则下列说法正确的有( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c02bc0c74292b1e8f395f90935d3174.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/b36a8570f5084bbed7bc6bc88a6f22fb.png)
A.![]() | B.![]() |
C.![]() | D.![]() ![]() |
您最近一年使用:0次
名校
2 . 已知数列
的前
项和为
,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/e9ba984e922424ae65819c8a2bc27c64.png)
A.![]() |
B.![]() ![]() |
C.![]() |
D.使得![]() ![]() |
您最近一年使用:0次
名校
3 . 设数列
的前
项和为
,
,
,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/de7f531789089a28da9cb8f0a45ccf88.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec301d4eee0451ccc9235a0c543776b1.png)
A.![]() |
B.![]() ![]() |
C.![]() ![]() |
D.![]() ![]() ![]() |
您最近一年使用:0次
2024-04-15更新
|
301次组卷
|
2卷引用:四川省成都市西北中学2023-2024学年高二下学期4月阶段性考试数学试题
名校
解题方法
4 . 已知等差数列
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/50a9a6eda7f8c9214e5a1c0f52f49a74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e9503e00ed41350e911c6f287da15ca9.png)
A.![]() | B.![]() |
C.使![]() ![]() ![]() | D.![]() ![]() |
您最近一年使用:0次
名校
解题方法
5 . 设
是等差数列
的前
项和,若
,且
,则下列选项中正确的是( )
![](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/fc99fa24f6df36da3bcc395ffca08f18.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2acac920d6838950304bf6fb6c194808.png)
A.![]() | B.![]() ![]() |
C.存在正整数![]() ![]() | D.不存在正整数![]() ![]() |
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名校
解题方法
6 . 已知等差数列
的公差
,
,
,记该数列的前n项和为
,则
的最大值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76aef4cdcb5af742ce28003b7b6c8c20.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2d8bbb4a09e0ac86bbae46222a90841.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c9c0e0f3f5a691681971f5ebdf4a680.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/232faf3b3aa63b4708168a3883dc2ec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
A.20 | B.24 | C.36 | D.40 |
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2024-02-24更新
|
1554次组卷
|
11卷引用:四川省成都市第四十九中学校2023-2024学年高二下学期3月月考数学试题
四川省成都市第四十九中学校2023-2024学年高二下学期3月月考数学试题河南省周口市西华县第一高级中学等校2023-2024学年高二上学期一月联考数学试题(已下线)专题04 数列(1)河北新乐市第一中学等2023-2024学年高二上学期期末联考数学试卷河北省石家庄市赵县七县联考2023-2024学年高二上学期期末数学试题(已下线)第五章:数列章末重点题型复习(1)黑龙江省大兴安岭实验中学(东校区)2023-2024学年高二下学期期初考试数学试题(已下线)4.2.2 等差数列的前n项和公式——课后作业(巩固版)黑龙江省实验中学2023-2024学年高二下学期4月考数学试题(已下线)湖南省永州市部分学校2023-2024学年高二下学期6月质量检测卷数学试题江西省赣州市南康中学2024届高三上学期七省联考考前数学猜题卷(七)
名校
7 . 已知等差数列
与
的前
项和分别为
,
,且
,则
的值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.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/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1ae9a3b0b7aeb1545b65d91aa371b3c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf0665d6fd8ea6f4592ca889af698851.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09d6538fcc8e63a23a36e72dacc5b65c.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2024-02-23更新
|
1911次组卷
|
4卷引用:四川省成都市成都七中万达学校2023-2024学年高二下学期3月月考数学试题
名校
8 . 已知数列
的前
项和
,则下列结论正确的是( )
![](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/f95c132239c3634e345b5bf7ab5c50d3.png)
A.数列![]() | B.![]() |
C.![]() | D.![]() |
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2024-02-04更新
|
443次组卷
|
2卷引用:四川成都实验外国语学校2023-2024学年高二下学期期中考试数学试题
名校
解题方法
9 . 数列
通项公式为
,则其前
项和
的最小值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e5c680de3498b79b3821bd7c769f937.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2024-01-11更新
|
573次组卷
|
2卷引用:四川省成都市第十二中学2023-2024学年高二下学期3月月考数学试题
解题方法
10 . 设
是一个无穷数列
的前
项和,若一个数列满足对任意的正整数
,不等式
恒成立,则称数列
为和谐数列,给出下列两个命题:
①若对任意的正整数
均有
,则
为和谐数列;
②若等差数列
是和谐数列,则
一定存在最小值;
下列说法正确的是( ).
![](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/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/edefd533852c96d0d8047c859d4bc458.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
①若对任意的正整数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a1a5945ce5c2114af8c18718ca8dc899.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
②若等差数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
下列说法正确的是( ).
A.① 是真命题,② 是假命题 | B.① 是假命题,② 真命题 |
C.① 和 ② 都是真命题 | D.① 和 ② 都是假命题 |
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2023-12-18更新
|
303次组卷
|
3卷引用:四川省天府新区实外高级中学2023-2024学年高二下学期3月月考数学试卷