名校
解题方法
1 . 在数列
中,
,
,若
,则
的前
项和取得最大值时
的值为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/996073497848d3338263739b76a7d293.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95bb2abc884490eeb3eca7d77b764ea8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/024adc9d8de69e7b79d8be88ce2020c0.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/b6a24198bd04c29321ae5dc5a28fe421.png)
您最近一年使用:0次
2019-05-07更新
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2490次组卷
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7卷引用:2019届福建省泉州市普通高中毕业班第二次(5月)质量检查理科数学试题