名校
1 . 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.![]() |
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2024-02-23更新
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4卷引用:湖北省新高考联考协作体2023-2024学年高二下学期2月收心考试数学试题