1 . 两个数列
、
满足
,
,
,
(其中
),则
的通项公式为![](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/034ba25825c13725931c483aa47c9363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/039e4fe671d61e59b96ee525c9df43e8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/59dd6c97d2ee3e74ba5730f1cbcc1d43.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13f2654efba30aab016f41d649af94ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1b0dc86922174aa51684cc6eb6aa66c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cea4ac187cbb465180e89f38250b3970.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3f7fda69e2b32b9ced2239f915fa59b.png)
您最近一年使用:0次
2021-10-29更新
|
2573次组卷
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10卷引用:【练】 专题2 构造数列问题
(已下线)【练】 专题2 构造数列问题江苏省徐州市第一中学2021-2022学年高二上学期10月月考数学试题(已下线)专题4.1 数列 章末检测1(易)-【满分计划】2021-2022学年高二数学阶段性复习测试卷(苏教版2019选择性必修第一册)(已下线)专题15 数列构造求解析式必刷100题-【千题百练】2022年新高考数学高频考点+题型专项千题百练(新高考适用)(已下线)专题26 数列的通项公式-5(已下线)数列专题:利用递推关系求通项公式的8种常用方法-【题型分类归纳】2022-2023学年高二数学同步讲与练(人教A版2019选择性必修第二册)(已下线)第6讲 数列的通项公式的11种题型总结(4)江苏省常州市前黄高级中学2023届高三考前攀登行动(一)数学试题(已下线)第04讲 数列的通项公式(十六大题型)(讲义)-4(已下线)数列专题:利用递推关系求通项公式(8大题型)-2023-2024学年高二数学题型分类归纳讲与练(人教A版2019选择性必修第二册)
名校
2 . 已知有穷数列
,
,
,
,
满足
,且当
时,
,令
.
(1)写出
所有可能的值;
(2)求证:
一定为奇数;
(3)是否存在数列
,使得
?若存在,求出数列
;若不存在,说明理由..
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5cff70eedae11d8afe0c0e8ef5fd0a37.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e88093a749c0d46e0ee931ecfaff925.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07096af3b99fd1cb11c31f19a2c6408e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/74f6c20a7b945dd94c4117a3d10a7347.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4455fe3127c5130ae5f66e42a7cc79d6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1bd1147d3076ee020d6af6c4cc3eaa8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad9e04d10c84ad483262f8e52e7b7ebf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56cc7400e2df7afc836c28f4ff3d4b65.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a9e21b38dd94a8f9cb95aeca180957f.png)
(1)写出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5c5b0b0a1114834e1431930cd3b7f0.png)
(2)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
(3)是否存在数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3cfeacc29e6a61c5b3b4e439c0a91df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fb3a382e10d7806414df36600c33084.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3cfeacc29e6a61c5b3b4e439c0a91df.png)
您最近一年使用:0次
2021-07-15更新
|
311次组卷
|
2卷引用:江西师范大学附属中学2024届高考第三次模拟测试数学试题
解题方法
3 . 设
为正整数,如果表达式
同时满足下列性质,则称之为“交错和”.①
,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/93a717d685be4e0d53456f42e3cd401b.png)
;②
;③当
时,
(
);④规定:当
时,
也是“交错和”.
(1)请将7和10表示为“交错和”;
(2)若正整数
可以表示为“交错和”
,求证:
;
(3)对于任意正整数
,判断
一共有几种“交错和”的表示方法,并证明你的结论.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c978be3cef71aa05b6ca98efb795dc99.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d70259b8ecc56afb8b3b15cf46082e2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/93a717d685be4e0d53456f42e3cd401b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e9b03740b24965e7196cbe91b82b252.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e55143c8153a818863a3e5cf3cc6075.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c972cbd63decec197aec1bdc306de67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a4cf5a951eef42eb9dff075e71210f3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43649a490b881e3f7a5b6b7bee1a8b8d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5095a28bb1b91bf6bed9e2cfbd76bb18.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/59295942629ce535281d5066f14a65de.png)
(1)请将7和10表示为“交错和”;
(2)若正整数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c978be3cef71aa05b6ca98efb795dc99.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7306bacb80799eeabd3fd46cb8632598.png)
(3)对于任意正整数
![](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
2021·全国·模拟预测
名校
解题方法
4 . 已知数列
满足
,
,其中
表示不超过实数
的最大整数,则下列说法正确的是( )
![](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/9a4e126ed47f61090b830d2d02340386.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c4f5908d6a1217e493ed7586b6964dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c4f5908d6a1217e493ed7586b6964dd.png)
A.存在![]() ![]() | B.![]() |
C.![]() | D.![]() |
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5 . 若正整数
的二进制表示是
,这里
(
),称有穷数列1,
,
,
,
为
的生成数列,设
是一个给定的实数,称
为
的生成数.
(1)求
的生成数列的项数;
(2)求由
的生成数列
,
,
,
的前
项的和
(用
、
表示);
(3)若实数
满足
,证明:存在无穷多个正整数
,使得不存在正整数
满足
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a573743c22f1988094a801651af5611e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1065440ee09654f97b50b5ef6a963ad.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ef7fb812f8cb384ae86e75fb949ac66.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/30de4943aa77db7dc0b92b29b2aa93f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/208400bfcdb85a19359c14f2c66e17c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37e5531913e2f170465d8df01795cd51.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f35f7dcce39f3d4dc6b7faf84dc1d0a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86fde3541708c770e48a06c28f9a3434.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cbf09398436b9b00458c5d9b245ba287.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c15a081508b98e5c53ebedc4be56c45.png)
(2)求由
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8be646cd52d7f2f1714e7542e75810f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/adad9633b73dfbbb3d84b4f15979e99e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37e5531913e2f170465d8df01795cd51.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ffb021aa7d5a5c2f0691e337caad624.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b51c3c1cbed76bbb68d50f7df7209a0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c45c1e00ea3205d39449f3f9d64ec126.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
(3)若实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa7f3694402a60c3b50e39a76d87c90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e8a28b156b7cb863056fda24d66fff68.png)
您最近一年使用:0次
名校
解题方法
6 . 对于正整数n,设
是关于x的方程
的实数根.记
,其中
表示不超过x的最大整数,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7999465d0e871febde66296a0cbf058c.png)
____________ ;设数列
的前n项和为
则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/469a49d15c634c79d8e36cb6edaff624.png)
___ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3282e5fde4ae53fcb1bb072a685304c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f2147cdb7c47327b9a8e3274df089aec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c84fb3e536f74961243c6b89ddcee09.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c4f5908d6a1217e493ed7586b6964dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7999465d0e871febde66296a0cbf058c.png)
![](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/469a49d15c634c79d8e36cb6edaff624.png)
您最近一年使用:0次
2020-08-12更新
|
1975次组卷
|
6卷引用:数列新定义
名校
7 . 设正整数数列
满足
.
(1)若
,请写出所有可能的
的取值;
(2)求证:
中一定有一项的值为1或3;
(3)若正整数m满足当
时,
中存在一项值为1,则称m为“归一数”,是否存在正整数m,使得m与
都不是“归一数”?若存在,请求出m的最小值;若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7138cc707c7bec7c0c5a60ffd25c1c2.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/259b2e755105c0ee479eabf7265a76a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e72adb45c60c2f63b46e65ff787302bf.png)
(2)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
(3)若正整数m满足当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/999ac8c1ef39251e07a7fc54cbf7e26e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0623207595425920f16e76a7f8f268b6.png)
您最近一年使用:0次
2020-02-23更新
|
669次组卷
|
3卷引用:微考点4-1 新高考新试卷结构压轴题新定义数列试题分类汇编
8 . 对于数列
,若存在常数M>0,对任意的n∈N*,恒有
,则称数列
为B-数列.
(1)首项为1,公比q(
)的等比数列是否为B-数列?请说明理由;
(2)设Sn是数列{xn}的前n项和,给出下列两组论断:
A组:①数列{xn}是B-数列,②数列{xn}不是B-数列
B组:①数列{Sn}是B-数列,②数列{Sn}不是B-数列
请以其中一组的一个论断为条件,另一组的一个论断为结论组成一个命题.判断所给命题的真假,并证明你的结论.
(3)若数列{an}、
都是B-数列,证明:数列{anbn}也是B-数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96a55e4115c36490a40f83d15f066bd8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9103576e7c3ca76b9a3c0f0aa1aaaaef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96a55e4115c36490a40f83d15f066bd8.png)
(1)首项为1,公比q(
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c679a17000041b4e796a61bfb0a919e5.png)
(2)设Sn是数列{xn}的前n项和,给出下列两组论断:
A组:①数列{xn}是B-数列,②数列{xn}不是B-数列
B组:①数列{Sn}是B-数列,②数列{Sn}不是B-数列
请以其中一组的一个论断为条件,另一组的一个论断为结论组成一个命题.判断所给命题的真假,并证明你的结论.
(3)若数列{an}、
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
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9 . 设数列
满足
,
.则数列
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8141d87fb02b08c88b0c9f27f839a7d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad80c183ec270ca9b1b95ed16c310490.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
A.有界且递减 | B.有界且递增 |
C.无界且递增 | D.无界且递减 |
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10 . 某校课外活动小组,在坐标纸上某沙漠设计植树方案如下:第
棵树种植在点
处,其中,
.当
时,
其中,
表示实数
的整数部分(如
.按此方案,第2008棵树种植点的坐标为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6a9ea0c17c1c1576541f981a202701b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f2f3ce5b908259523ba8411a21e91b7f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c972cbd63decec197aec1bdc306de67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5af738fb9e4210b8122853bf9007dd1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0306c8a9b082d56b04c967093ddf256a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a2c5f0431bb4ce7564145ec0fe3c3a99.png)
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