1 . 已知
为等差数列
的前
项和,
,
,则下列选项正确的有( )
![](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/909c242b7979161475bd11eab00108d5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a6d59d69729ce816c149c85b0fcc831.png)
A.数列![]() | B.当![]() ![]() |
C.![]() | D.![]() |
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2023-01-05更新
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697次组卷
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3卷引用:山东省滨州市2023-2024学年高二上学期1月期末考试数学试题