解题方法
1 . 我国古代数学著作《孙子算经》中有一道题:“今有物不知其数,三三数之剩二,五五数之剩二,七七数之剩二,问物几何?”根据这一数学思想,所有被3除余2的正整数按从小到大的顺序排列组成数列
,所有被5除余2的正整数按从小到大的顺序排列组成数列
,把数列
与
的公共项按从小到大的顺序排列组成数列
,若
,则
的最大值为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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2 . 已知数列
满足:
,
,且
,
,其中
.若
,则使得
成立的最小正整数m为___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f8365233f341451598eb50525a1557a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0483a2816b0472a5b4a09f1a716ae01f.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/def837d5429125f64fd4276d576f42a7.png)
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2022-04-30更新
|
1068次组卷
|
2卷引用:山东省济宁市2022届高三高考模拟考试(二模)数学试题
解题方法
3 . 已知数列
满足:
,且
,则数列
的通项公式![](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/9293c9fa9e3eee037521204a0c2a301c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/039e4fe671d61e59b96ee525c9df43e8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3f7fda69e2b32b9ced2239f915fa59b.png)
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解题方法
4 . 在数列
中,已知
,
,记数列
的前
项之积为
,若
,则
的值为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/039e4fe671d61e59b96ee525c9df43e8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/771c4a48f7564efa37cae07843fc8c4e.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/f1ae9a3b0b7aeb1545b65d91aa371b3c.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
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解题方法
5 . 在数列
中,
,
为
的前
项和,关于
的方程
有唯一解,若不等式
,对任意的
恒成立,则实数
的取值范围为______
![](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/08eb71ecf8d733b6932f4680874dbbf3.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/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e0a142c2928a1b81f7d72f703fee66a.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
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6 . 写出一个同时满足下列条件①②③的数列
的通项公式![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3f7fda69e2b32b9ced2239f915fa59b.png)
______ .
①
为递增数列;②
为等比数列;③
为等差数列.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3f7fda69e2b32b9ced2239f915fa59b.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2bf3da897eb73b729f66bb0d700775c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a25cbe66fe4e84b4022721122baab4a3.png)
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2022-03-04更新
|
623次组卷
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2卷引用:2022年高三数学新高考测评卷(猜题卷三)
7 . 已知正项数列
满足
,
,其中
为数列
的前
项和,则数列
的前
项的和为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9583a4d9bf7b954042226232d23a8c19.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f093c61867ee4ce75f951d46b9b123.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.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/c6cda54d36354c15ab79bf253a73f5e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cfd121f4aeca8a78a320fca1fd1c4d07.png)
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2022-01-16更新
|
743次组卷
|
5卷引用:云南省三校2022届高三高考备考实用性联考(二)数学(文)试题
云南省三校2022届高三高考备考实用性联考(二)数学(文)试题(已下线)解密11 数列的前n项和及其应用(分层训练)-【高频考点解密】2022年高考数学二轮复习讲义+分层训练(全国通用)(已下线)4.2等差数列B卷(已下线)专题4.4 裂项相消法求和-2021-2022学年高二数学特色专题卷(人教A版2019选择性必修第二册)(已下线)高二数学下学期期中精选50题(提升版)2021-2022学年高二数学下学期考试满分全攻略(人教A版2019选修第二册+第三册)
8 . 已知数列
满足
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5651e370d1a2402eff7836f854490aa1.png)
___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7921372fbff7250902f537e954c1ad15.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5651e370d1a2402eff7836f854490aa1.png)
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解题方法
9 . 已知Sn为正项数列{an}的前n项和,且满足
(n∈N*).则an=________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61283cf2ddcddbf4190162b7c9510290.png)
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2022-01-14更新
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4卷引用:安徽省合肥市第十一中学2020-2021学年高二上学期开学考试数学试题
安徽省合肥市第十一中学2020-2021学年高二上学期开学考试数学试题贵州省思南中学2020-2021学年高二上学期期中考试数学试题(已下线)专题13 盘点数列的通项公式的求法——备战2022年高考数学二轮复习常考点专题突破(已下线)类型一 等差数列-【题型突破】备战2022年高考数学二轮基础题型+重难题型突破(新高考专用)
名校
解题方法
10 . 已知数列{an}的前n项和
,设数列{cn}满足:
(
为非零常数,
),存在整数
,使得对任意
,都有
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5085e3cdef9ea6c564e079f745d6fdb.png)
________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ccaef94120e7f914c4c5cbe31a34e32.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2caa436dceebf1b5d457d2f0301dcbcc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5085e3cdef9ea6c564e079f745d6fdb.png)
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