名校
1 . 数列
是各项均为正数的等比数列,数列
是等差数列,且
,则
![](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/3a0258f11b3d6c361afec0e3cdfeb6c8.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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2018-07-11更新
|
1273次组卷
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6卷引用:【校级联考】山东省淄博市部分学校2019届高三5月阶段性检测(三模)数学(理)试题
2018高三·全国·专题练习
名校
2 . 设正项等比数列
且
的等差中项为
.
(1)求数列
的通项公式;
(2)若
,数列
的前n项为
,数列
满足
,
为数列
的前
项和,求
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ada7f60c966860240aaa504692b76ca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fe61d313eeca8ba47478a9de40540db8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bcd7dab04da0a263753bd13c8a6c5e17.png)
(1)求数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70fe18a3d0e5cb68bd397469f93f4728.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57ef6d44448092ebdb9e4a49d866a749.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2325ce6325fc3cda7674bfdc4d73f45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1ae9a3b0b7aeb1545b65d91aa371b3c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57ef6d44448092ebdb9e4a49d866a749.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1ae9a3b0b7aeb1545b65d91aa371b3c.png)
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2018-06-17更新
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1734次组卷
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19卷引用:【校级联考】山东省实验中学等四校2019届高三联合考试数学文科试题
【校级联考】山东省实验中学等四校2019届高三联合考试数学文科试题(已下线)《高频考点解密》—解密12 数列的前n项和及其应用(已下线)解密11 数列的前n项和及其应用-备战2018年高考文科数学之高频考点解密2019年11月广西壮族自治区柳州市一模数学(文)试题2019年11月广西壮族自治区柳州市一模数学(理)试题2020届广西柳州市高三第一次模拟考试数学(文)试题宁夏银川一中2021届高三第四次月考数学(理科)试题山西省运城市景胜中学2021届高三上学期第三次月考数学(理)试题新疆巴音郭楞蒙古自治州第二中学2021届高三上学期第六次月考数学(文)试题新疆巴音郭楞蒙古自治州第二中学2021届高三第六次月考数学(理)试题黑龙江省牡丹江市第三高级中学2021-2022学年高三上学期第五次月考数学(理)试题【全国百强校】四川省成都外国语学校2018-2019学年高一下学期期中考试理科数学试题四川省成都外国语学校2018-2019学年高一下学期期中考试文科数学试题吉林省实验中学2018-2019学年高一下学期期末考试数学(文)试题江西师范大学附属中学2020-2021学年高一4月月考数学试题甘肃省静宁县第一中学2020-2021学年高一下学期第三次月考数学(理)(实验班)试题河南省驻马店市第二高级中学2021-2022学年高二上学期第一次月考(文、理)数学试题贵州省铜仁市松桃民族中学2022-2023学年高二下学期第一次月考数学试题江西省抚州市黎川县第二中学2022-2023学年高二下学期期中数学试题
名校
3 . 已知数列
的前
项和为
(
),且满足
,若对
恒成立,则首项
的取值范围是__________ .
![](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/cea4ac187cbb465180e89f38250b3970.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6c905883ac4f2d3609998f76df8b66e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eedbd168618a95a85e0a4598ad914284.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e72adb45c60c2f63b46e65ff787302bf.png)
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2018-04-12更新
|
2328次组卷
|
6卷引用:山东、湖北部分重点中学2018年高考冲刺模拟试卷(二)理科数学试题
名校
4 . 已知数列
分别是等差数列与等比数列,满足
,公差
,且
.
(1)求数列
和
的通项公式;
(2)设数列
对任意正整数
均有
成立,设
的前
项和为
,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62e567d7e9761951a266953c8d5042ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b065334d8f60c49f4bd3d9f1373fe4cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4ce64685821c3e55c07f151996ca8c3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7cc7abbf004c45a561d5d7b61bc943f.png)
(1)求数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
(2)设数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57ef6d44448092ebdb9e4a49d866a749.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/edd11c351e601e800ee95e42bb8f43f8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57ef6d44448092ebdb9e4a49d866a749.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
求证:是自然对数的底数)
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名校
5 . 设等差数列
的公差为d,前n项和为![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6f0e5ba16f2b96f327e48da01971896.png)
成等比数列.
(1)求数列
的通项公式;
(2)设
,求数列
的前n项和
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6f0e5ba16f2b96f327e48da01971896.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d870654750957f722808d2edb836b40.png)
(1)求数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/216876de04325fd250c38c485cbc34b7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1ae9a3b0b7aeb1545b65d91aa371b3c.png)
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2018-01-02更新
|
1711次组卷
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4卷引用:山东省平度一中2019届高三12月阶段性质量检测数学(理科)试题
2013·福建·一模
名校
6 . 已知数列{an}满足a1=1,
,其中n∈N*.
(1)设
,求证:数列{bn}是等差数列,并求出{an}的通项公式.
(2)设
,数列{cncn+2}的前n项和为Tn,是否存在正整数m,使得
对于n∈N*,恒成立?若存在,求出m的最小值;若不存在,请说明.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4cb570b2e190d3a0fc98dd2ec3a7dd7.png)
(1)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d4bb3133b7ca679c841508e1f9431ff0.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/391806a296d261369eb28a74d4bd6e02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3aba7b2970bad263810840bd0b9ca8fa.png)
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2017-11-25更新
|
2583次组卷
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23卷引用:【市级联考】山东省日照市2017届高三下学期第一次模拟考试数学(理)试题
【市级联考】山东省日照市2017届高三下学期第一次模拟考试数学(理)试题(已下线)2013届福建省高三高考压轴理科数学试卷(已下线)2014届浙江省绍兴市第一中学高三上学期期中考试理科数学试卷(已下线)2015届湖南省衡阳市高三上学期五校联考文科数学试卷2015届河北省唐山市一中高三上学期期中考试文科数学试卷山东省青州二中2017-2018学年高二10月月考数学试题山东省临沂市兰山区2017—2018学年高二上学期数学(文)期中考试试题内蒙古巴彦淖尔市第一中学2018届高三12月月考数学(理)试题安徽省六安中学2020-2021学年高三上学期第三次月考数学(文)试题(已下线)秘籍07 数列-备战2022年高考数学抢分秘籍(新高考专用)天津市蓟州区第一中学2021届高三下学期模拟检测一数学试题湖南省常德市汉寿县第一中学2024届高三上学期期中数学试题湖南省醴陵市第一中学2017-2018学年高二上学期期中考试数学(文)试题高中数学人教A版必修5 第二章 数列 2.5.3 数列的应用 (2)2017-2018学年陕西省汉中市汉台中学西乡中学高二上学期期末联考数学(理)试题【校级联考】天津市七校(静海一中、宝坻一中、杨村一中等)2018-2019学年高二上学期期末考试数学试题河北省石家庄实验中学2019-2020学年高一下学期4月月考数学试题浙江省温州市苍南县金乡卫城中学2019-2020学年高一下学期第一次月考数学试题(已下线)江西省南昌市南昌十中2019-2020高一下学期返校考试数学试题江西省南昌市第十中学2019-2020学年高一5月摸底考试数学试题吉林省长春市农安县实验中学2019-2020学年高一下学期期末考试数学试题河北省唐山市开滦第二中学2020-2021学年高二上学期期末数学试题重庆市北碚区2022-2023学年高二上学期10月月考数学试题
7 . 已知双曲线
的一个焦点为
,一条渐近线方程为
,其中
是以4为首项的正数数列.
(Ⅰ)求数列
的通项公式;
(Ⅱ)若不等式
对一切正常整数
恒成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8c0c99a4fee3d94d7f430fda5949611c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7cf02de294f5eda25908e6a4c91a8a7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d91a18f8751aa1008f1e43516a588207.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4be2164a2c67d6163faee87a10942bb.png)
(Ⅰ)求数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c88a7ef007c78a93e33bd77c4396626.png)
(Ⅱ)若不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7c691d43e21563f96292ae1d741fadd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
您最近一年使用:0次
11-12高三上·山东济宁·期中
名校
8 . 已知数列
的前
项和为
,且
是
与2的等差中项 ;数列
中,
,点
在直线
上.
(Ⅰ) 求数列
的通项公式
和
;
(Ⅱ)设
,求数列
的前n项和
![](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/96abfe2da27a63e6affb19a0c80236d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/59dd6c97d2ee3e74ba5730f1cbcc1d43.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2cc620ced12a88a5148090490a39ebbf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e23fc11a3a7592c68b20f93bdde2ed3f.png)
(Ⅰ) 求数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/faa7b6da594e67616dc2039cfffd66a8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96abfe2da27a63e6affb19a0c80236d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/686ece75006ad358f23314dc8a246e11.png)
(Ⅱ)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d44ddab6e0c60119be69985ae7fa65b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57ef6d44448092ebdb9e4a49d866a749.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1ae9a3b0b7aeb1545b65d91aa371b3c.png)
您最近一年使用:0次
真题
9 . 将数列
中的所有项按每一行比上一行多一项的规则排成下表:
![](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/6c1ccc6c74b8754e9bcbb3f39a11b6f1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/daf464629fa321a6ff7401ab79f07083.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f65fc200f10b97588a0c9896277c9c64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5da4cd81500bdb43118150dbdb1541e6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7fd71bc7e6668f90f259ad0b06dd60c2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7da2f386b78cdf6489efaa2f5820d3e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc858b7a95c5006a44067022da09f667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e35eeaabd951fb09b2926807da3685b.png)
……
记表中的第一列数
、
、
、
……构成的数列为
,
,
为数列
的前
项和,且满足![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b507d597586ad02d74cd78d20e84fab1.png)
(I)证明数列
成等差数列,并求数列
的通项公式;
(II)上表中,若从第三行起,每一行中的数从左到右的顺序均构成等比数列,且公比为同一个正数,当
时,求上表中第
行所有项的和
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4be2164a2c67d6163faee87a10942bb.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/6c1ccc6c74b8754e9bcbb3f39a11b6f1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/daf464629fa321a6ff7401ab79f07083.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f65fc200f10b97588a0c9896277c9c64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5da4cd81500bdb43118150dbdb1541e6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7fd71bc7e6668f90f259ad0b06dd60c2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7da2f386b78cdf6489efaa2f5820d3e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc858b7a95c5006a44067022da09f667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e35eeaabd951fb09b2926807da3685b.png)
……
记表中的第一列数
![](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/daf464629fa321a6ff7401ab79f07083.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7fd71bc7e6668f90f259ad0b06dd60c2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43b7e7cd571c8cd141cbbfe5d0890bf6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81b1a669907dfdd9a1c6aa976c000f56.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43b7e7cd571c8cd141cbbfe5d0890bf6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b507d597586ad02d74cd78d20e84fab1.png)
(I)证明数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/051e50e9a3fb2a8c63e171eaed229b2d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43b7e7cd571c8cd141cbbfe5d0890bf6.png)
(II)上表中,若从第三行起,每一行中的数从左到右的顺序均构成等比数列,且公比为同一个正数,当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e30eb887fcfe875d36343e9cda86b99.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c45e5cee4c7281ca194bdf4e7f62958e.png)
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2016-11-30更新
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404次组卷
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5卷引用:2008年普通高等学校招生全国统一考试(山东卷)理科数学