名校
1 . 已知等差数列
满足
,且
是此数列的前
项和,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58dd9153ebcaf0ec191eefa9ae748a35.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4be2164a2c67d6163faee87a10942bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/473e7fa2abff40be1e5d14b5d2b0c768.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58dd9153ebcaf0ec191eefa9ae748a35.png)
您最近一年使用:0次
2017-05-26更新
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692次组卷
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2卷引用:福建省泉州第十六中学2021届高三上学期期中考试数学试题