用
表示大于
的最小整数,例如
,
,
.已知数列
满足
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9c8a694b9c8e90875ef2379d37efb84.png)
______________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a2ab85825d4a002600ca41bd3cd2ee7d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d22c00f66521c4911c626e9894eb8ef4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76af9a60d0ace5d9ca6852c0a00847cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76af4f1f0283534690b3f2339333c182.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/606e55241a2e145d54849129b8ffd20f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b065334d8f60c49f4bd3d9f1373fe4cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d754bc529cfab94af50384ef686b191d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9c8a694b9c8e90875ef2379d37efb84.png)
2019高二上·全国·专题练习 查看更多[2]
更新时间:2019-09-09 17:11:00
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【知识点】 裂项相消法求和
相似题推荐
填空题-单空题
|
适中
(0.65)
【推荐1】数列
的通项公式
,若前
项的和为10,则项数
为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d471926f7b27322d90c82b9ce21d3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c5034a6a8063b7547521fec1cabeda0.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
填空题-单空题
|
适中
(0.65)
名校
解题方法
【推荐2】已知数列
的前
项和为
,满足
,设
,则数列
的前2021项和![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da14545c3b4016fe1da93959d72e1e88.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/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25bdaa1dcde76250fdfabd69b6be95b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a0700dec354397bda0ea3fbf2d7bc8e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da14545c3b4016fe1da93959d72e1e88.png)
您最近一年使用:0次