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1 . 观察数列:①
;②正整数依次被4除所得余数构成的数列
;③
.
(1)对以上这些数列所共有的周期特征,请你类比周期函数的定义,为这类数列下一个周期数列的定义:对于数列
,如果________________,对于一切正整数
都满足___________________成立,则称数列
是以
为周期的周期数列;
(2)若数列
满足
,
为
的前
项和,且
,求数列
的周期,并求
;
(3)若数列
的首项,
,且
,判断数列
是否为周期数列,并证明你的结论.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8d9f608508a65794125b39e67b98eb8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb6d15b3f5b6f23a9cb341ff3e43f215.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/078205bbd0d854b6aaf5aa6e0a772723.png)
(1)对以上这些数列所共有的周期特征,请你类比周期函数的定义,为这类数列下一个周期数列的定义:对于数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b68df477b3ee45ac0f725db00d465a1.png)
(2)若数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ff13e48f70a467d750be8179c63f534.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/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6492a4d97fd8f988963cf177ec14fcb7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5fbf62141da783d700923fa2d17b9ae0.png)
(3)若数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5f61c2e3ee306d0c805f54f83761f85.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa9cef966e838bf77be9b00d410741c4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
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解题方法
2 . 小明和小童两位同学玩构造数列小游戏,规则是:首先给出两个数字1,10,然后小明把两数之积插入这两数之间得到第一个新数列1,10,10,再然后小童把每相邻两项的积插入此两项之间,得到第二个新数列1,10,10,100,10,如此下去,不断得到新数列.假设第n个新数列是:
记:
,则下列结论成立的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f43f03fe90f853919aa01e04439e47b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ef9a381fae7e7e59049e7e1f4b319c7.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
2022-12-13更新
|
260次组卷
|
2卷引用:山东省淄博市部分学校2022-2023学年高三上学期12月教学质量摸底检测数学试题
名校
3 . 我们学习了数学归纳法的相关知识,知道数学归纳法可以用来证明与正整数n相关的命题.下列三个证明方法中,可以证明某个命题
对一切正整数n都成立的是( )
①
成立,且对任意正整数k,“当
时,
均成立”可以推出“
成立”
②
,
均成立,且对任意正整数k,“
成立”可以推出“
成立”
③
成立,且对任意正整数
,“
成立”可以推出“
成立且
成立”
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/daab2e7f7f9ea6d1dcaf060c783c756b.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fa328960e6dc80959cfc59089c797a53.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25b9a20da2019c8c6697f365456c1cf9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49c6880e36dad6b438097e61cc6f0d85.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/540addad0bd4f41e2fdc9d911cfef232.png)
②
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fa328960e6dc80959cfc59089c797a53.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/50bf3ba483958f9b27207938daa33b90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1727fb87c29714663abb6e3560ddf466.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d91a3dcdcaa17788ff68638ac44686b7.png)
③
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/50bf3ba483958f9b27207938daa33b90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c972cbd63decec197aec1bdc306de67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1727fb87c29714663abb6e3560ddf466.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8477e8de5b84a17b4e06582e22dc8951.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed928169cedaf09c5ec3f72ddb313491.png)
A.②③ | B.①③ | C.①② | D.①②③ |
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名校
解题方法
4 . 一个计算装置有一个入口
和一输出运算结果的出口
,将自然数列
中的各数依次输入
口,从
口得到输出的数列
,结果表明:①从
口输入
时,从
口得
;②当
时,从
口输入
,从
口得到的结果
是将前一结果
先乘以自然数列
中的第
个奇数,再除以自然数列
中的第
个奇数.试问:
(1)从
口输入2和3时,从
口分别得到什么数?
(2)从
口输入100时,从
口得到什么数?并说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0914b68f106a912420705b2f3928ca42.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1da9dcf6c319174c9ea2b1ceaed1649a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/905f109bd996690439b0e0dc86e85578.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0914b68f106a912420705b2f3928ca42.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1da9dcf6c319174c9ea2b1ceaed1649a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b28ef6f1b2279af482557a8ea46f2e43.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0914b68f106a912420705b2f3928ca42.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a064d647b2740e0e0f18836d7a4a72df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1da9dcf6c319174c9ea2b1ceaed1649a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/770966e2e65bf885d7f6f68df4a60aef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f1f98fb37e8417e282f0ae247a905c4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0914b68f106a912420705b2f3928ca42.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a425978da20cebf8c4c63953579e7b35.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1da9dcf6c319174c9ea2b1ceaed1649a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96abfe2da27a63e6affb19a0c80236d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e73767433af5cbb6925cb47f9349cc8d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d5f367d90f02b00f728b0d64c03a9397.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33189643b81f534fd6a1b76dda00d369.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d5f367d90f02b00f728b0d64c03a9397.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb3e2f42388d6162a04a91165db79c66.png)
(1)从
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0914b68f106a912420705b2f3928ca42.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1da9dcf6c319174c9ea2b1ceaed1649a.png)
(2)从
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0914b68f106a912420705b2f3928ca42.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1da9dcf6c319174c9ea2b1ceaed1649a.png)
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5 . 已知数列
的前
项和为
,且
对于
恒成立,若定义
,
,则以下说法正确的是( )
![](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/204fe825361c413ddc828c5505476789.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cac657ea5bbf4b237a30e4074c76cc81.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac64b041aafdf33ee9816f4d70175a1c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8665563867d19ec3a09ba96cabb0a8f4.png)
A.![]() | B.![]() |
C.![]() | D.存在![]() ![]() |
您最近一年使用:0次
2022-04-07更新
|
2507次组卷
|
7卷引用:湖北省二十一所重点中学2022届高三下学期第三次联考数学试题
湖北省二十一所重点中学2022届高三下学期第三次联考数学试题(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)粤湘鄂名校联盟2023届高三上学期第一次联考数学试题(已下线)山东省青岛第二中学2022-2023学年高三上学期1月期末测试数学试题变式题11-16江苏省南京市第一中学2023届高三下学期2月期初考试数学试题山东省菏泽市菏泽一中八一路校区2024届高三上学期12月月考数学试题河南省焦作市博爱县第一中学2024届高三下学期4月月考数学试题
6 . 在各项均不为零的数列
中,选取第
项、第
项、…、第
项,其中
,
,若新数列
为等比数列,则称新数列为
的一个长度为
的“等比子列”.已知等差数列
,其各项与公差
均不为零.
(1)若在数列
中,公差
,
,且存在项数为3的“等比子列”,求数列
的通项公式;
(2)若
,数列
为
的一个长度为
的“等比子列”,其中
,公比为
.当
最小时,求
的通项公式;
(3)若公比为
的等比数列
,满足
,
,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac52d20d7bb3a6631f5035ef18b64c19.png)
,证明:数列
为数列
的“等比子列”.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6defc43285a40f7ccb74c1cc04265eba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/423b7ae39db552e60ee8b1d27312306f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27628b047da341c79074ea4aa938ddc8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/527093b2ec760913d0dccff8a099248b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d0c5b45ef6860f96dd3f033b456056c8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/31ba164203399725ee3c6d42ba903b56.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/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c02bc0c74292b1e8f395f90935d3174.png)
(1)若在数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5c1344592c925b273f2cb9b9e47ebbb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e234c3ca9dee1ae2a17638010eaf7f90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dbd9fd3c51552c29d7c351790bb2404.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ffcbf641680b1c03802d53984840ab66.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/2eaa992a449b828df0ff545e233b279b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3bbbf4d763f3cbe5a71707bc19c78191.png)
(3)若公比为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/89fe0f4e8a80a2840c0f6929a8a6351b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/769fe52ac96348d3b12d23d06d702595.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac52d20d7bb3a6631f5035ef18b64c19.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8eeab42f189f7464a50e44bd29406e7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
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7 . 已知向量
,
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ff4bb0f887451f0524683404fe03d4c.png)
________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9916a58d7a81c9aef007b6dd8b2c570d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/77b3c8fa1d2f88b5122692ad678b2146.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d4b850b47a49811a4f9f49817abcd621.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ff4bb0f887451f0524683404fe03d4c.png)
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8 . 已知正实数列
满足
,当
时,记集合
,且集合
中的最大元素为
.
(1)若
,求数列
的通项公式;
(2)记数列前n项和为
,证明:存在正实数
,对于任意的正实数
与整数n>1,都有
.注:对于任意实数a,b,定义
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10b321b66145a2ed6b30d30b62fd8acb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3bcfc48f9bc23cc43085bdb910e7a136.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f7afe76f3b456f040fef0d89e0f2996f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3cfeacc29e6a61c5b3b4e439c0a91df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96abfe2da27a63e6affb19a0c80236d9.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/191a66915ee31c2c7e0a0ace99df4586.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
(2)记数列前n项和为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2bc85af36f64be115dd7c5d88fac6a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c0158862238e250d2a2598b7d4ecd148.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c0e8564359b3f5bd268ab136314f17.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/478e75f2162f25b93d4c337e2829fc05.png)
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