满足不等式
整数解个数为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63e75a4dfb5449664114ce96b1a84d8d.png)
21-22高三下·广西南宁·阶段练习 查看更多[3]
更新时间:2022-05-23 16:41:44
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【推荐1】已知数列
的前n项和
,数列
的前n项和为
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7978d7bd6f6caf9ac9837ffce5f89654.png)
____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
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【推荐2】已知等差数列
的前
项和为
,若
,
,则
的取值范围是__________ .
![](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/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/239bf5cc2c5eb9ce68a3f08676de0f6c.png)
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解题方法
【推荐2】设数列
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1ae9a3b0b7aeb1545b65d91aa371b3c.png)
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