名校
1 . 对于数列
,定义:
,称数列
是
的“倒差数列”下列叙述正确的有( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b79fe9a3df8763b527f55c6637205753.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
A.若数列![]() ![]() |
B.若数列![]() ![]() ![]() |
C.若![]() ![]() |
D.若![]() ![]() |
您最近一年使用:0次
2020-11-19更新
|
1264次组卷
|
6卷引用:4.1 数列-2021-2022学年高二数学同步培优训练系列(苏教版2019选择性必修第一册)
(已下线)4.1 数列-2021-2022学年高二数学同步培优训练系列(苏教版2019选择性必修第一册)(已下线)专题7.9 数列的函数性质—单调性与周期性(小题)-2022届高三数学一轮复习精讲精练(已下线)第七章 数列专练1—数列的概念及其简单表示法-2022届高三数学一轮复习(已下线)专题9 周期数列 微点2 周期数列的“脸谱”识别江苏省苏州市2020-2021学年高二上学期期中数学试题江苏省苏州市相城区陆慕高级中学2020-2021学年高二上学期期中数学试题
2 . 已知
,有穷数列
满足
,将所有项之和为
的可能的不同数列
的个数记为
.
(1)求
,
;
(2)已知
,
,若
时,总有
,求出一组实数对
;
(3)求
关于
的表达式.
![](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/6715f4300d689fe5d01d681b7d91b902.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6899bf9cadae2ccdb14cbc87d4f280ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f30f56664446f32dbbc2c5f12a99374.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2dd0914dc4d4c7f75710ff460a286fcf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3bcfc48f9bc23cc43085bdb910e7a136.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a2f792b089573cec34e01c18a74eb9b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4562f3225c98cf5cb11b47d98c9cc9c3.png)
(3)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
您最近一年使用:0次
名校
3 . 记实数
、
中的较大者为
,例如
,
.对于无穷数列
,记
(
),若对于任意的
,均有
,则称数列
为“趋势递减数列”.
(1)根据下列所给的通项公式,分别判断数列
是否为“趋势递减数列”,并说明理由.
①
,②
;
(2)设首项为
的等差数列
的前
项和为
、公差为
,且数列
为“趋势递减数列”,求
的取值范围;
(3)若数列
满足
、
均为正实数,且
,求证:
为“趋势递减数列”的充要条件为
的项中没有
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/53ad6b511253288bb1a39cf30a82e644.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb626a543683ed841d9bfbe27d8aaea2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4efa2bfeae46035438472aa935d3b423.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d471926f7b27322d90c82b9ce21d3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac663b57dc8fbaacb1602e72c16cf023.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4cf5776ec7059c208daf01ca48a34915.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4cf5776ec7059c208daf01ca48a34915.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9061f8214290bca8739be868526443d1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d471926f7b27322d90c82b9ce21d3d.png)
(1)根据下列所给的通项公式,分别判断数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d471926f7b27322d90c82b9ce21d3d.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d21525bafaecd7d5462f080ec663804.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc150cfe321e5601480c07674cb7f811.png)
(2)设首项为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d471926f7b27322d90c82b9ce21d3d.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/5c02bc0c74292b1e8f395f90935d3174.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cce224c28ca451c4f105dc3b077736cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c02bc0c74292b1e8f395f90935d3174.png)
(3)若数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d813f3ca8db41a4db6c18eac30fef98.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5edf900c810371fb21297c15f86d8743.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b31ac1def558351e2e3ed1235c570530.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa3facc7f0df3b9360f71c6685a9a1a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d813f3ca8db41a4db6c18eac30fef98.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d813f3ca8db41a4db6c18eac30fef98.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c95b6be4554f03bf496092f1acdfbb89.png)
您最近一年使用:0次
2021-05-05更新
|
871次组卷
|
4卷引用:专题10 数列(难点)-2020-2021学年高二数学下学期期末专项复习(北师大版2019选择性必修第一册、第二册)
(已下线)专题10 数列(难点)-2020-2021学年高二数学下学期期末专项复习(北师大版2019选择性必修第一册、第二册)上海市普陀区2021届高三二模数学试题(已下线)考向17 数列新定义-备战2022年高考数学一轮复习考点微专题(上海专用)上海市青浦高级中学2022届高三下学期3月月考数学试题
名校
4 . 被人们常常津津乐道的兔子数列是指这样的一个事例:一对幼兔正常情况下一年后可长成成兔,再过一年后可正常繁殖出一对新幼兔,新幼兔又如上成长,若不考虑其他意外因素,按此规律繁殖,则每年的兔子总对数可构成一奇妙的数列,兔子数列具有许多有趣的数学性质,该数列在西方又被称为斐波拉契数列,它最初记载于意大利数学家斐波拉契在1202年所著的《算盘全书》.现有一兔子数列
,
,若将数列
的每一项除以2所得的余数按原来项的顺序构成新的数列
,则数列
的前2021项和为_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6da8917820192fae75bb2c2e145fc5b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7353bf2a06f45601169c3e035c96c5e5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c99efc632b87d5229f5222dff158116.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4be2164a2c67d6163faee87a10942bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4be2164a2c67d6163faee87a10942bb.png)
您最近一年使用:0次
2021-02-04更新
|
861次组卷
|
6卷引用:思想05 第三篇 思想方法(测试卷)-2021年高考二轮复习讲练测(浙江专用)
(已下线)思想05 第三篇 思想方法(测试卷)-2021年高考二轮复习讲练测(浙江专用)(已下线)数学与数学著作江西宜春市2021届高三上学期数学(文)期末试题(已下线)期末模拟题(三)-2021-2022学年高二数学同步单元AB卷 (人教A版2019选择性必修第一册+第二册,浙江专用)新疆石河子第一中学2021届高三8月月考数学(理)试题(B卷)新疆石河子第一中学2021届高三8月月考数学(文)试题(B卷)
5 . 已知数列![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
,记
,首项
,若对任意整数
,有
,且
是k的正整数倍.
(1)若
,写出数列
的前10项;
(2)证明:对任意
,数列
的第n项
由
唯一确定;
(3)证明:对任意正整数
,数列
从某一项起为等差数列.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/171660c1b84c77783215548f5c7b18fc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2efba990f1fca3fe00fb5e0a7fff0bf0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f6e49730c7fa574cdc4dd468f0112db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd47dbecf560f7b181bcad0acff6aea2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0439c0add9e874983695e40b9fc607d2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d0a9523f2084cf17b8656c11ab1d95e.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b3397364f378662f9ca49c50bd59bfd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
(2)证明:对任意
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6bc5735838e43b7a229e8f45c9bfffb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96abfe2da27a63e6affb19a0c80236d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e72adb45c60c2f63b46e65ff787302bf.png)
(3)证明:对任意正整数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d7e9f86738335a22298559db41037a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/846fa57d92d6ad44d6a0cafad1e71ed4.png)
您最近一年使用:0次
2021-04-14更新
|
852次组卷
|
5卷引用:押第17题 解三角形与数列-备战2021年高考数学(理)临考题号押题(全国卷2)
(已下线)押第17题 解三角形与数列-备战2021年高考数学(理)临考题号押题(全国卷2)北京市顺义区2021届高三二模数学试题上海市七宝中学2021届高三下学期第一次模拟数学试题上海市闵行区七宝中学2021届高三5月份数学模拟试题(专题07数列
名校
解题方法
6 . 高斯函数中用
表示不超过
的最大整数,对应的
为
的小数部分,已知数列
的前
项和为
,数列
满足
.已知函数
在
上单调递减.
(1)若数列
,其前
项为
,求
.
(2)若数列
(即
为
的小数部分),求
的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c4f5908d6a1217e493ed7586b6964dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18f2754b3b1dad0794ec35a1771e1453.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96abfe2da27a63e6affb19a0c80236d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9f7de6534e371bc49b9086aaecb45b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/686ece75006ad358f23314dc8a246e11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e4fd0783713648310475c3d49bbc73c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fcb3962a140b2c8529531c80e8a129a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cad3cc66a47b09bd04e29c82b55faf22.png)
(1)若数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/532a06ecb2b13f27b149300e48133774.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/5f3cf6f2bbe20a404fea41a4d2b1c4c7.png)
(2)若数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8c8b83cd4a06eb4c5e1510a0767340cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82e260b088f071983f254ce8f5163fcd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/686ece75006ad358f23314dc8a246e11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82e260b088f071983f254ce8f5163fcd.png)
您最近一年使用:0次
名校
解题方法
7 . 1.设数列
中前两项
、
给定,若对于每个正整数
,均存在正整数
使得
,则称数列
为“
数列”.
(1)若数列
为
、
的等比数列,当
时,试问
与
是否相等,并说明数列
是否为“
数列”﹔
(2)讨论首项为
、公差为
的等差数列
是否为“
数列”,并说明理由;
(3)已知数列
为“
数列”,且
,
,记
,其中正整数
,对于每个正整数
,当正整数
分别取1、2、…、
时,
的最大值记为
,最小值记为
,设
,当正整数
满足
时,比较
与
的大小,并求出
的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99a22f5023293a85d8381277769d68dc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e72adb45c60c2f63b46e65ff787302bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e88093a749c0d46e0ee931ecfaff925.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3bcfc48f9bc23cc43085bdb910e7a136.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f53c09fba64f3bc86dac3e29bf56b018.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2b608c12c4e7b9e6d7561be763c6733.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b68df477b3ee45ac0f725db00d465a1.png)
(1)若数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99a22f5023293a85d8381277769d68dc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b065334d8f60c49f4bd3d9f1373fe4cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a9dae8e6c9b93458f324f30538a3eb89.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3bcfc48f9bc23cc43085bdb910e7a136.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96abfe2da27a63e6affb19a0c80236d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f0055ef3b9c21a572f6cc0a79cdce9e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99a22f5023293a85d8381277769d68dc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b68df477b3ee45ac0f725db00d465a1.png)
(2)讨论首项为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e72adb45c60c2f63b46e65ff787302bf.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/0b68df477b3ee45ac0f725db00d465a1.png)
(3)已知数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b68df477b3ee45ac0f725db00d465a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1bae03ee4ac75dacfb026290e4207dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f966272f7781790ff27e40db6b525253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a07186f6469ba083a12864ddee551246.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/918893290e48bba154bd5a14a805f10f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3bcfc48f9bc23cc43085bdb910e7a136.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5aadf9ab510510120699c5eee39ab18b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf57ba4761db4d3fc993ae5815325bb5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ddad3d9fdb5e9951b6a1c31f9a72a71.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0a625b91e0eba33b107550ee2a1e2f4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/717d039b3a4967ca6b0a899bfd12a83b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/268b0a589ddfd494ebc898a556c260bc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/686ece75006ad358f23314dc8a246e11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e95931effbd59c43e8ed1ea09962b84f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/686ece75006ad358f23314dc8a246e11.png)
您最近一年使用:0次
2021-12-10更新
|
812次组卷
|
4卷引用:专题03 《数列》中的压轴题-2021-2022学年高二数学同步培优训练系列(苏教版2019选择性必修第一册)
(已下线)专题03 《数列》中的压轴题-2021-2022学年高二数学同步培优训练系列(苏教版2019选择性必修第一册)上海市上海师范大学附属中学2020-2021学年高一下学期期末数学试题上海市格致中学2022届高三上学期12月月考数学试题江西省安福中学2021-2022学年高二上学期开学考试数学(理)试题
8 . 南宋数学家杨辉《详解九章算法》和《算法通变本末》中,提出垛积公式,所讨论的高阶等差数列前后两项之差不相等,但是逐项差数之差或者高次差成等差数列.对这类高阶等差数列的研究,在杨辉之后一般称为“垛积术”.现有高阶等差数列,其前6项分别1,6,13,24,41,66,则该数列的第7项为( )
A.91 | B.99 | C.101 | D.113 |
您最近一年使用:0次
2021-05-06更新
|
873次组卷
|
5卷引用:4.2.1 等差数列的概念-2021-2022学年高二数学同步培优训练系列(苏教版2019选择性必修第一册)
(已下线)4.2.1 等差数列的概念-2021-2022学年高二数学同步培优训练系列(苏教版2019选择性必修第一册)河北省秦皇岛市2021届高三二模数学试题江苏省常州市新桥高级中学2021届高三下学期三模数学试题甘肃省兰州大学附属中学2021-2022学年高二上学期第一次月考数学(文科)试题广东省罗定中学城东学校2023届高三上学期8月调研数学试题
9 . 已知等差数列
满足:
,
,
成等差数列,且
,
,
成等比数列.
(1)求数列
的通项公式
(2)在任意相邻两项
与
之间插入
个2,使它们和原数列的项构成一个新的数列
,求数列
的前200项和
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7131900393b9906bd6dcfe26ade2059f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c1ccc6c74b8754e9bcbb3f39a11b6f1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/daf464629fa321a6ff7401ab79f07083.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e72adb45c60c2f63b46e65ff787302bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c1ccc6c74b8754e9bcbb3f39a11b6f1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7da2f386b78cdf6489efaa2f5820d3e.png)
(1)求数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
(2)在任意相邻两项
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f255d0395fba51ca2d44293cca42e0a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72db2248d203458b1700230ca63e1761.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/98aa5f1acb67ec4580d240c2525e4d5c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4cb8cdacedeb2ec46a7d65e903a0ce1b.png)
您最近一年使用:0次
2021-06-05更新
|
828次组卷
|
4卷引用:考点22 等比数列及其前n项和-备战2022年高考数学(文)一轮复习考点帮
(已下线)考点22 等比数列及其前n项和-备战2022年高考数学(文)一轮复习考点帮江苏省扬州中学2021届高三下学期最后一模数学试题广东省七校联合体2023届高三上学期11月第二次联考数学试题福建省宁德第一中学2023-2024学年高二上学期10月学科素养数学试题
名校
10 . 对于数列
,定义
为数列
的差分数列,其中
.如果对任意的
,都有
,则称数列
为差分增数列.
(1)已知数列
为差分增数列,求实数
的取值范围;
(2)已知数列
为差分增数列,且
,
.若
,求非零自然数k的最大值;
(3)已知项数为2k的数列
(
)是差分增数列,且所有项的和等于k,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d471926f7b27322d90c82b9ce21d3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5a12a1692b36e4bf3a867220d099e31.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d471926f7b27322d90c82b9ce21d3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a87ee5c855af8543cd8b87bb009a869b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/deda945164283569437cda6976fe35ea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b05563cb4df28aa2083ec58142e3f4af.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d471926f7b27322d90c82b9ce21d3d.png)
(1)已知数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72ac34845fee87c6db7afdf743346503.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
(2)已知数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d471926f7b27322d90c82b9ce21d3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/736dc8ce0e8bf2f0cc7cc8b42d6b623b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42bfe87a8f66a72d24ffd73e36f2e430.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1998ec6504bc2f5d43c1e7f0c8f69284.png)
(3)已知项数为2k的数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0208908fa748f1c3acd7ea969646392c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eaa5533405e21f9550df95b8f50cb1ea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b424900b9460b02d3559bfc8df1abc44.png)
您最近一年使用:0次
2021-05-04更新
|
779次组卷
|
6卷引用:专题10 数列(难点)-2020-2021学年高二数学下学期期末专项复习(北师大版2019选择性必修第一册、第二册)
(已下线)专题10 数列(难点)-2020-2021学年高二数学下学期期末专项复习(北师大版2019选择性必修第一册、第二册)上海市崇明区2021届高三二模数学试题(已下线)考向17 数列新定义-备战2022年高考数学一轮复习考点微专题(上海专用)(已下线)第4章 数列 单元综合检测(难点)(单元培优)-2021-2022学年高二数学课后培优练(苏教版2019选择性必修第一册)上海市洋泾中学2023届高三上学期10月月考数学试题上海市松江区第四中学2022-2023学年高二上学期期中数学试题