2019高三·江苏·专题练习
1 . 若在数列
中,对任意正整数
,都有
(常数),则称数列
为“等方和数列”,称
为“公方和”,若数列
为“等方和数列”,其前
项和为
,且“公方和”为
,首项
,则
的最大值与最小值之和为________ .
![](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/667a9cf4b697d3c115b1805bcb6d8b89.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d471926f7b27322d90c82b9ce21d3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.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/bdaa19de263700a15fcf213d64a8cd57.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3d5611c524c9abbcb4c9c1eb04a3791.png)
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2 . 对于数列
,若存在
,则称数列
分别为数列
的“商数数列”和“余数数列”.已知数列
是等差数列,
是其前
项和,
.
(1)求数列
的通项公式;
(2)证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de5bed0059d63bcd866d79b024f5daf4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad3f785503f28f836337100f4e3d57aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/849916b7bae1da483aa3abceae5c106e.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/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6aa3875c17763c4bcbd7eebd5c805ebd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5da6c69ace952e0d9c4defd637be494b.png)
(1)求数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
(2)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/420c634c5969c5a9aa7185bd53d4781e.png)
您最近一年使用:0次
2017-12-10更新
|
516次组卷
|
3卷引用:专题9 周期数列 微点3 周期数列综合训练
名校
3 . 若数列
的每一项都是数列
中的项,则称
是
的子数列.已知两个无穷数列
、
的各项均为正数,其中
,
是各项和为
的等比数列,且
是
的子数列,则满足条件的数列
的个数为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.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/83cf38189d5cbf627d2b82ac0eb76006.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/e63c2ab170e9f9b4a569e2d1f82d4d20.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
A.0个 | B.1个 | C.2个 | D.无穷多个 |
您最近一年使用:0次
2020-05-08更新
|
207次组卷
|
4卷引用: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)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)2020届上海市松江区高三在线质量评估(4月)数学试题2020届上海市松江区高三下学期高考模拟(4月)数学试题上海市行知中学2020-2021学年高二上学期10月月考数学试题
名校
4 . 设数列
共有
项,记该数列前
项
,
,…,
中的最大项为
,该数列后
项
,
,…,
中的最小项为
,
(
1,2,3,…,
).
(1)若数列
的通项公式为
,求数列
的通项公式;
(2)若数列
是单调数列,且满足
,
,求数列
的通项公式;
(3)试构造一个数列
,满足
,其中
是公差不为零的等差数列,
是等比数列,使得对于任意给定的正整数
,数列
都是单调递增的,并说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d471926f7b27322d90c82b9ce21d3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32242e0f13757d9272dbb9b2dde59396.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c05b9832b09731a574d4a4adf7448de.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/50a272adba0f1120109824440f0e252c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e819b87f90651d89fcd258c276294e43.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27fe0a0139387ac29a3a22de8a694414.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4b8d5b6045219ea4527202ab131bb2e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a1474a7ff515722319205a132a75562.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/681ae1522a36768618f7ddaf74abbb7e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fdc5c895153932c3e827a464664cef90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de95d944c903a631eb5ebcacff45f19c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51b1e185d6a0ab350cdc947beeb82040.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f1e94f660b7d05de4be4b5fbd9041f4.png)
(1)若数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d471926f7b27322d90c82b9ce21d3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e4b5779873cb3f4366dbfdb983dec81.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4691fe03867d254e5bb77da216660271.png)
(2)若数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d471926f7b27322d90c82b9ce21d3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b065334d8f60c49f4bd3d9f1373fe4cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84e15e7894710bc5a7b936ebf9e78cb4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d471926f7b27322d90c82b9ce21d3d.png)
(3)试构造一个数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d471926f7b27322d90c82b9ce21d3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3cb2db37e079b735acc41ea3035139e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5fce83115a50f99e08e9a2db7267aeed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38ef4c4439b36c2847b0056a116d56d4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4691fe03867d254e5bb77da216660271.png)
您最近一年使用:0次
2020-02-03更新
|
218次组卷
|
7卷引用:2018年高考二轮复习测试专项【苏教版】专题五 数列
(已下线)2018年高考二轮复习测试专项【苏教版】专题五 数列(已下线)《2018届优等生百日闯关系列》【江苏版】专题二 第五关 以子数列或生成数列为背景的解答题(已下线)4.3.1-4.3.2 等比数列的概念和通项公式-2022-2023学年高二数学《基础·重点·难点 》全面题型高分突破(苏教版2019选择性必修第一册)(已下线)4.3.1.2 等比数列的性质及应用(练习)-2022-2023学年高二数学同步精品课堂(人教A版2019选择性必修第二册)2016届江苏省南京市、盐城市高三第一次模拟考试数学试卷2017届上海市复旦大学附属中学高三毕业考试数学试题2016届上海市高考压轴数学试题
2020高三·全国·专题练习
5 . 正整数数列{an}满足
已知a7=2,{an}的前7项和的最大值为S,把a1的所有可能取值按从小到大排成一个新数列{bn},{bn}所有项的和为T,则S-T=________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c753d919538064cfa0e58cffc2ad3eb.png)
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6 . 记
项正项数列为
,
,…,
,其前
项积为
,定义
为“相对叠乘积”,如果有2019项的正项数列为
,
,…,
的“相对叠乘积”为2019,则有2020项的数列为10,
,
,…,
的“相对叠乘积”为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.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/96abfe2da27a63e6affb19a0c80236d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1ae9a3b0b7aeb1545b65d91aa371b3c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3e16141bf16d1ce984750f3e073075c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e72adb45c60c2f63b46e65ff787302bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e88093a749c0d46e0ee931ecfaff925.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e72adb45c60c2f63b46e65ff787302bf.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aaec3004937aab88c44e66753caab782.png)
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7 . 设数列{an}的前n项和为Sn,若
为常数,则称数列{an}为“精致数列”.已知等差数列{bn}的首项为1,公差不为0,若数列{bn}为“精致数列”,则数列{bn}的通项公式为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c65899c430166e3edd16a0f01fb49cf0.png)
您最近一年使用:0次
2020-08-29更新
|
206次组卷
|
4卷引用:专题6.2 等差数列及其前n项和-2021年高考数学(文)一轮复习-题型全归纳与高效训练突破
(已下线)专题6.2 等差数列及其前n项和-2021年高考数学(文)一轮复习-题型全归纳与高效训练突破(已下线)专题6.2 等差数列及其前n项和(精练)-2021届高考数学(文)一轮复习讲练测2016届安徽省淮南市高三下学期二模文科数学试卷河北省枣强中学2016-2017学年高二下学期第三次月考数学(文)试题
8 . 平面内 的“向量列”
,如果对于任意的正整数
,均有
,则称此“向量列”为“等差向量列”,
称为“公差向量”.平面内的“向量列”
,如果
且对于任意的正整数
,均有
(
),则称此“向量列”为“等比向量列”,常数
称为“公比”.
(1)如果“向量列”
是“等差向量列”,用
和“公差向量”
表示
;
(2)已知
是“等差向量列”,“公差向量”
,
,
;
是“等比向量列”,“公比”
,
,
.求
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a85cead056c360dc3a253f4b33e80e0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4dd949f9af21eff17c5cdaf4438bef8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/358d896d9eab84c6695ddc25196e6857.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f3fefe72b9201eaf520aea69b6aaaa2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da12988ddfd0d6226744004d7437aecb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b47280112e90f4ce717611192f20341.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a3ac83c571110d41a396d12d8eea1c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
(1)如果“向量列”
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a85cead056c360dc3a253f4b33e80e0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d970a4c8abf3fe4da3382206086a6cb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/358d896d9eab84c6695ddc25196e6857.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3233f5e755fb51ee6bd0a8d337f40d12.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a85cead056c360dc3a253f4b33e80e0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64fe27a5119108f0609a3dbfbaf0afcc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24bc24a80ad23ba1bf43fccf459db241.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f2a4a87ad3a2461eb421202190afebd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f3fefe72b9201eaf520aea69b6aaaa2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26d9b6c86435e0ceff94d8ad1cd03737.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/953b81b4315fea86094e86efa5aff6db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fb91c3e8efbdb5d271f74ab8898e591.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2f65db2356c791fa3e94577b3f58807.png)
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9 . 若对任意的
且
,总存在
,使得
(
),则称数列
是“T数列”.现有以下四个数列:①
;②
;③
;④
.其中所有“T数列”的序号为___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a82caca991a9f313f3d17537fb41be6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b71af6590f0f369c164a054a8b63bf6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cea4ac187cbb465180e89f38250b3970.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/633ade479e3fbf0d5e931f95471c6216.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f06570f9ce914bbb1a81bd60ade4188b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f510ad524c266160a89d9ed100a5ddda.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff3cbe02319216fc8677985dd003fc03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb8ec29f45e28624133ace854b9ca648.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d531a1145c0da903d3407f8f5d45d78.png)
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2020·北京·模拟预测
10 . 已知数组
,如果数组
满足
,且
,其中![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd707b69a11f8de5566f23c1a2a9ff5a.png)
,则称
为
的“兄弟数组”.
(1)写出数组
的“兄弟数组”
;
(2)若
的“兄弟数组”是
,试证明:
成等差数列;
(3)若
为偶数,且
的“兄弟数组”是
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d620a71a9448d3a5be7fd8d5fea7094e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cad083576ed8ff766b6d7c2a59a1c448.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d7e6327ecd86c682863f4a89e619fef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f4e4331fad6dd8938a84d3f7acb22c1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd707b69a11f8de5566f23c1a2a9ff5a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36bbe8cda8ae5895cb84ad193a0342b3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63f5c583c98a1fd516c6ceaa60b55dec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3cfeacc29e6a61c5b3b4e439c0a91df.png)
(1)写出数组
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/75d995c25fb6b9e0c92a16a5f2a9d48e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d1cb4ffc937e336200fd70fc089041a.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a02946f2d73ba2e050d212fa559ff59.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0eef264776e151b88129cb191d6e633.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66e3077378e1286cde53c044cbc4fe6e.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3cfeacc29e6a61c5b3b4e439c0a91df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63f5c583c98a1fd516c6ceaa60b55dec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a84a765c0049c6d0ce44846cb59f5b1.png)
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