名校
1 . 已知等差数列
的首项为
,公差为
,前
项和为
,若
,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/e72adb45c60c2f63b46e65ff787302bf.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/d03cb978ad8081c5bb6c9cd21a6a333a.png)
A.![]() | B.使得![]() ![]() |
C.![]() | D.![]() ![]() |
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2023-11-26更新
|
2400次组卷
|
8卷引用:重庆市第八中学校2023-2024学年高三上学期高考适应性月考(三)(11月)数学试题
名校
2 . 设
是等差数列,
是其前n项的和,且
,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/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a94251c470c370d0cb6466e983eb76ab.png)
A.![]() | B.![]() |
C.![]() ![]() ![]() | D.![]() ![]() |
您最近一年使用:0次