名校
解题方法
1 . 在1,3中间插入二者的乘积,得到1,3,3,称数列1,3,3为数列1,3的第一次扩展数列,数列1,3,3,9,3为数列1,3的第二次扩展数列,重复上述规则,可得1,
,
,…,
,3为数列1,3的第n次扩展数列,令
,则数列
的通项公式为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c814128ea2139e33db94ea590e7c2223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aec19b68e3add9d5bfcc6269a1855b87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3ca222d3f8f34fb6b4b385f7f5c699f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a13a9ce5fc6e3fdc06fce427f6e0571e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76aef4cdcb5af742ce28003b7b6c8c20.png)
您最近一年使用:0次
2024-02-14更新
|
1302次组卷
|
6卷引用:江西省九师联盟2024届高三上学期1月质量检测试数学试题
江西省九师联盟2024届高三上学期1月质量检测试数学试题江西省宜春市上高二中2024届高三上学期期末数学试题(已下线)新题型01 新高考新结构二十一大考点汇总-1(已下线)压轴题数列新定义题(九省联考第19题模式)练黑龙江省大庆市大庆中学2024届高三下学期开学考试数学试题广东省广州市执信中学2023-2024学年高二下学期3月月考数学试题
2 . 对于项数为
的数列
,若数列
满足
,
,其中,
表示数集
中最大的数,则称数列
是
的
数列.
(1)若各项均为正整数的数列
的
数列是
,写出所有的数列
;
(2)证明:若数列
中存在
使得![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cce3b6654490dcd8177970631e929d3d.png)
,则存在
使得
成立;
(3)数列
是
的
数列,数列
是
的
数列,定义
其中
.求证:
为单调递增数列的充要条件是
为单调递增数列.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bb951647594b67c82045b7ba69f57cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8c3bd239656c2ef509ed9f2a91a68317.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bfd88e35dc6c2b82b4bb29475d37c015.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4cda05b106f920bbcfa02320229ca3c2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/698f45c9ed5bb04924f1037107e76988.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8c3bd239656c2ef509ed9f2a91a68317.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bb951647594b67c82045b7ba69f57cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
(1)若各项均为正整数的数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bb951647594b67c82045b7ba69f57cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c2f32a17f0261d32079efed31d414a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bb951647594b67c82045b7ba69f57cd.png)
(2)证明:若数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bb951647594b67c82045b7ba69f57cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/50a272adba0f1120109824440f0e252c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cce3b6654490dcd8177970631e929d3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6afadbd5dc4d8003ac2a0c85678dbecf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4578089af6806bf1257491091b924d3a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c2dd6a827492dffddd07e621a4bbe36.png)
(3)数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8c3bd239656c2ef509ed9f2a91a68317.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bb951647594b67c82045b7ba69f57cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4af75cc7d8cc976dce8bf9bd8fdc18f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/defa9f328d5108bbec5c56eebfe95567.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d019d9549df6aed0dab378301d889ed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70322214e5c9d9a8df10eb45930f5745.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0cb2e86a5aa896bef041701e0e1771ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8504784fec514a92d845910c6721c3a.png)
您最近一年使用:0次
3 . 若数列
满足:存在等比数列
,使得集合
元素个数不大于![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
,则称数列
具有
性质.如数列
,存在等比数列
,使得集合
,则数列
具有
性质.若数列
满足
,
,记数列
的前
项和为
.证明:
(1)数列
为等比数列;
(2)数列
具有
性质.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c1fd18a909cecbaee7115d6b15631d83.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5ab0309e2cd35585ea9fb2cc3017abf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a75786d2d4c9abbb9ddea89c3dd1e39.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2eb60c1a8dba48239b667dcf1235dd2d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c1fd18a909cecbaee7115d6b15631d83.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d46bf6ded2f869744c6c50785f974aa6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41ad4f005f5def1e6c0d54610692c03d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05d8a4d9c52ac3520d5b64c62499ecf0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0b64100360c766baccac7c39255d8ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c1fd18a909cecbaee7115d6b15631d83.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3bea0dd7e474bcd04db2544427ba0488.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76aef4cdcb5af742ce28003b7b6c8c20.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1bae03ee4ac75dacfb026290e4207dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1aa128888d2031f4c634be7f954238ad.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76aef4cdcb5af742ce28003b7b6c8c20.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
(1)数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b24baee90fd506c597bd9bd7293e90a.png)
(2)数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d013861990cf331c82eb453416ae31bc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3bea0dd7e474bcd04db2544427ba0488.png)
您最近一年使用:0次
2024-01-13更新
|
830次组卷
|
4卷引用:湖北省武汉市江岸区2024届高三上学期1月调考数学试题
湖北省武汉市江岸区2024届高三上学期1月调考数学试题(已下线)压轴题数列新定义题(九省联考第19题模式)练河南省郑州市宇华实验学校2024届高三下学期第二次模拟考试数学试题(已下线)模型1 用综合法快解新情境背景下的数列创新题模型(高中数学模型大归纳)
4 . 对于正整数
,设最接近
的正整数为
(如
,
),记
,从全体正整数中除去所有
,余下的正整数按从小到大的顺序排列得到数列
,则数列
的前5项和为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d249094ecb996458e35182d6b461299.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96abfe2da27a63e6affb19a0c80236d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b065334d8f60c49f4bd3d9f1373fe4cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb334e165679c6cb500c994cffa47147.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c46752bd68b97f8cb69b26e14acdc468.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/686ece75006ad358f23314dc8a246e11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57ef6d44448092ebdb9e4a49d866a749.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57ef6d44448092ebdb9e4a49d866a749.png)
A.55 | B.65 | C.70 | D.75 |
您最近一年使用:0次
5 . 数列
:1,1,2,3,5,8,…,称为斐波那契数列,该数列是由意大利数学家菜昂纳多·斐波那契(Leonardo Fibonacci)从观察兔子繁殖而引入,故又称为“兔子数列”.数学上,该数列可表述为
,
.对此数列有很多研究成果,如:该数列项的个位数是以60为周期变化的,通项公式
等.借助数学家对人类的此项贡献,我们不难得到
,从而易得
+
+
+…+
值的个位数为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8323901a49cac29afd7d62864f088077.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f4c3ded683593d177e9dc890938422cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/334b002c0edfc3f32f9b65b129c03dcb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc41fa7aef562e9dd92ba267be7813a3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f23cabc65fcefdd191930fbfa89cf125.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a8553a873958eb9d14c89c59ab5c317.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67a2fc7063bcdce2bee4cb0f4d748d72.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da690136762870d3082276b147353aaf.png)
您最近一年使用:0次
解题方法
6 . 若数列
满足
(
,
是不等于
的常数)对任意
恒成立,则称
是周期为
,周期公差为
的“类周期等差数列”.已知在数列
中,
,
.
(1)求证:
是周期为
的“类周期等差数列”,并求
的值;
(2)若数列
满足
,求
的前
项和
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e927ab7a2fa29bfd816bc7d47383008b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f6b18b109a656b62fb173680ae99ca7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c02bc0c74292b1e8f395f90935d3174.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c95b6be4554f03bf496092f1acdfbb89.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f093c61867ee4ce75f951d46b9b123.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c02bc0c74292b1e8f395f90935d3174.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/23d591569c30e9c920131f944c6f2b3a.png)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/229f6aa84c797132909da0dd908d034b.png)
(2)若数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/02187b5c60b16ad051a99b6f18ec76eb.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/f1ae9a3b0b7aeb1545b65d91aa371b3c.png)
您最近一年使用:0次
7 . “
,
数列”在通信技术有着重要应用,它是指各项的值都等于
或
的数列.设
是一个有限
,
数列,
表示把
中每个
都变为
,
,每个
都变为
,
,所得到的新的
,
数列,例如
,则
.设
是一个有限
,
数列,定义
,
、
、
、
.则下列说法正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c95b6be4554f03bf496092f1acdfbb89.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c95b6be4554f03bf496092f1acdfbb89.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c95b6be4554f03bf496092f1acdfbb89.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38e3d87be9f706832ef25537d78a201b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c95b6be4554f03bf496092f1acdfbb89.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c95b6be4554f03bf496092f1acdfbb89.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c95b6be4554f03bf496092f1acdfbb89.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c95b6be4554f03bf496092f1acdfbb89.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6edc631d8880daae668cef7c72790ae5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e5a03f4d0258927e2815b75301274c0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a18722354086c42e62334983fc50eb6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c95b6be4554f03bf496092f1acdfbb89.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9f939918bc9c36dbb32e8e1d7853b18.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5095a28bb1b91bf6bed9e2cfbd76bb18.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ca7d1107389675d32b56ec097464c14.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37e5531913e2f170465d8df01795cd51.png)
A.若![]() ![]() |
B.对任意有限![]() ![]() ![]() ![]() ![]() ![]() |
C.![]() ![]() ![]() ![]() ![]() ![]() |
D.若![]() ![]() ![]() ![]() ![]() |
您最近一年使用:0次
2021-07-01更新
|
1194次组卷
|
5卷引用:辽宁省营口市2021-2022学年高三上学期期末数学试题
辽宁省营口市2021-2022学年高三上学期期末数学试题重庆市第八中学2021届高三下学期模拟(八)数学试题(已下线)数学与物理(已下线)专题07 数列-备战2022年高考数学母题题源解密(新高考版)重庆实验外国语学校2022届高三上学期一诊模拟数学试题