已知数列
,
,对于任意正整数m,n,都满足
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8c90e592607a0eed6363f879f799c52c.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b065334d8f60c49f4bd3d9f1373fe4cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e30a5a82ee0df77b7cf9ae75bd9107c4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8c90e592607a0eed6363f879f799c52c.png)
2022·辽宁葫芦岛·一模 查看更多[4]
辽宁省葫芦岛市2022届高三第一次模拟考试数学试题(已下线)考点13 数列概念及通项公式(核心考点讲与练)-2023年高考数学一轮复习核心考点讲与练(新高考专用)重庆市璧山来凤中学校2023届高三上学期10月月考数学试题(已下线)技巧02 填空题的答题技巧(精讲精练)-1
更新时间:2022-04-28 13:13:43
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填空题-单空题
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适中
(0.65)
解题方法
【推荐1】在数列
中,
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3f7fda69e2b32b9ced2239f915fa59b.png)
________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/039e4fe671d61e59b96ee525c9df43e8.png)
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填空题-单空题
|
适中
(0.65)
名校
解题方法
【推荐2】已知数列
,若数列
与数列
都是公差不为0的等差数列,则数列
的公差是___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cdd318227e410cbf0bdde61ba6190775.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f767e48434dd9dffbcf5fc19b813ed96.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f767e48434dd9dffbcf5fc19b813ed96.png)
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【推荐1】南宋数学家杨辉所著的《详解九章算法·商功》中记录了“三角垛”的变化情形,如图所示,三角垛的第一层有1个球,第二层有3个球,第三层有6个球,第四层有10个球,⋯,以此类推;设第n层有
个球,则
=______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96abfe2da27a63e6affb19a0c80236d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/706182007fed7b3cf14e78cbb47fda42.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/5/1/e0d64f5f-3d1c-4f90-bb8e-6c5bbee0407d.png?resizew=111)
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【推荐2】已知数列
的项和为
,
,若
对任意的
恒成立,则正整数
的最小值为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/290eb8636b13cd6cc831db2f47462b34.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
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