名校
解题方法
1 . 已知数列
为等差数列,
,数列
满足
,且
.
(1)求
的通项公式;
(2)设
,记数列
的前
项和为
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/039e4fe671d61e59b96ee525c9df43e8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/630098e784020faff7321e96fc9bdd42.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eab7d59ce066c8f0b346719003f8e28f.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b5a3142edf5c4c0da42010fbbd78a099.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)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c1056f02e4a7e9b8fd479519eec2d9b3.png)
您最近一年使用:0次
2022-01-26更新
|
1770次组卷
|
4卷引用:山东省威海市2021-2022学年高二上学期期末数学试题
名校
解题方法
2 . 已知数列
满足
,
,
.
(1)求数列
,
的通项公式;
(2)设
,数列
的前
项和为
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/884ad5c96b0159e10777f748d47bf39d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a95a6d18b8d9f842812929b47b5d2d5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/209591cfb9f8271f5ad48d89f214f22e.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
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6faa1477d9fa3471ad7da1bc374a3a91.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)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e672c3d231081d12e44a4211e5ac60bf.png)
您最近一年使用:0次
2021-12-02更新
|
1290次组卷
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2卷引用:山东省枣庄市第三中学2021-2022学年高二上学期期末数学试题
2021·全国·模拟预测
名校
解题方法
3 . 已知数列
的前n项和为
,
,
,
.
(1)求
;
(2)令
,证明:
.
![](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/b065334d8f60c49f4bd3d9f1373fe4cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4cb55f892384ff20549df447cdba100b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e145b6046bc80d0ffecc61ac67c87ca1.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
(2)令
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0d52887054cab120dc777fdc091333c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4d3cf6c6d56b6faa6d9f036f119a97f.png)
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2021-12-30更新
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965次组卷
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5卷引用:山东省东营市第一中学2022-2023学年高三上学期期末数学试题
山东省东营市第一中学2022-2023学年高三上学期期末数学试题(已下线)2022年全国高中名校名师原创预测卷(五)江苏省2022届高三高考前临门一脚数学试题江西省宜春市万载县株潭中学2023届高三上学期12月份练习(月考)数学试题(已下线)大题强化训练(11)
4 . 已知数列
满足
,且
.
(1)求证:数列
是等差数列;
(2)记
,数列
的前n项和为
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1bae03ee4ac75dacfb026290e4207dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/953c344b027c94825faaf238478c1477.png)
(1)求证:数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/099a64d86bd0b4602578d910322adc1b.png)
(2)记
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/470cd032371dd0193f340ca87d4ad2d8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1ae9a3b0b7aeb1545b65d91aa371b3c.png)
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2021-11-18更新
|
1112次组卷
|
3卷引用:山东省济宁市邹城市第二中学2021-2022学年高二上学期12月月考数学试题
5 . 已知数列
满足
的前
项和为
.
(1)求数列
的通项公式;
(2)设
,数列
的前
项和为
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76aef4cdcb5af742ce28003b7b6c8c20.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ffa5b9c53090e899419d4437f262005.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
(1)求数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76aef4cdcb5af742ce28003b7b6c8c20.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6270b306175ccbccf8d02d8cfcca8d01.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32ffc8ea3fd2020c856aadb94e634773.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/2048d69f86c2654986737857529c82a3.png)
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2022-05-24更新
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5卷引用:湖北省十堰市东风高级中学2021-2022学年高二下学期期末综合数学试题 (2)
湖北省十堰市东风高级中学2021-2022学年高二下学期期末综合数学试题 (2)江苏省苏州市2022届高三下学期高考前模拟数学试题江苏省苏州市第六中学2022届高三下学期三模数学试题(已下线)高二数学下学期期末模拟试卷02(选择性必修第二册+数列+圆锥曲线+导数)-【题型分类归纳】2022-2023学年高二数学同步讲与练(苏教版2019选择性必修第二册)辽宁省沈阳市第二十中学2022-2023学年高二下学期第二次阶段测试(6月)数学试题
6 . 已知首项为
的数列
的前
项和为
,且
.
(1)求证:数列
为等差数列;
(2)记数列
的前
项和为
,求
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.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/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a9871fe1c863015c89bc36600bc9f02.png)
(1)求证:数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc0b53ddd01ed8617540f85ce89ce82d.png)
(2)记数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f92941624b5f93addfa870afb800f24e.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/f1ae9a3b0b7aeb1545b65d91aa371b3c.png)
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2021-10-21更新
|
1143次组卷
|
3卷引用:山东省济南市历城第二中学2021-2022学年高三上学期开学考试数学试题
7 . 已知数列
的前n项和为Sn,Sn+1=4an,n∈N*,且![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8c79a9159d5c6453401c627057d2f254.png)
(1)证明:
是等比数列,并求
的通项公式;
(2)在①bn=an+1-an;②bn=log2
;③
,这三个条件中任选一个补充在下面横线上,并加以解答.已知数列{bn}满足_________,求{ bn }的前n项和
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8c79a9159d5c6453401c627057d2f254.png)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/40dc43b8d11d5462e4b525dd7b03bcfc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
(2)在①bn=an+1-an;②bn=log2
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/77288bfa684c2a9ca00c75743232a0e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/adbb8fed07e232b3960f61b4be1ff387.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68eee81e090b96819b7df54fc1bcc3a6.png)
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2022-05-20更新
|
950次组卷
|
19卷引用:预测卷04-2021年高考数学金榜预测卷(山东、海南专用)
(已下线)预测卷04-2021年高考数学金榜预测卷(山东、海南专用)(已下线)江苏省七市(南通、泰州、扬州、徐州、淮安、连云港、宿迁)2021届高考三二模数学试题(已下线)必刷卷06-2021年高考数学考前信息必刷卷(江苏专用)湖北省华中师范大学第一附属中学2021届高三下学期四月综合测试数学试题广东省揭阳市普宁市华侨中学2021届高三下学期二模数学试题(已下线)专题7.21 数列大题(结构不良型2)-2022届高三数学一轮复习精讲精练(已下线)专题2.4 数列-结构不良型-2021年高考数学解答题挑战满分专项训练(新高考地区专用)广东省梅江市梅州中学2022届高三上学期10月月考数学试题四川省资阳市高中2021-2022学年高三上学期第二次诊断性考试数学(理)试题(已下线)第2讲 数列通项与求和(讲·)-2022年高考数学二轮复习讲练测(新教材地区专用)江苏省盐城市2021-2022学年高二上学期期末数学试题1四川省资阳市2022届高三二诊数学理科试题2022届高三普通高等学校招生全国统一考试 数学预测卷(六)(已下线)期末测试卷02(B卷·提升能力)-2021-2022学年高二数学同步单元AB卷(苏教版2019选择性必修第一册)【学科网名师堂】湖北省襄阳市第五中学2022届高三下学期适应性考试(一)数学试题四川省泸县第一中学2022-2023学年高三上学期期末考试数学(文)试题四川省泸县第一中学2022-2023学年高三上学期期末考试数学(理)试题(已下线)期末测试卷01(基础卷)-【满分计划】2022-2023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)第4章 数列(基础卷)-【满分计划】2022-2023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)
8 . 已知数列
满足
,且
.
(1)证明:
是等比数列,并求
的通项公式;
(2)在①
;②
;③
这三个条件中任选一个补充在下面横线上,并加以解答.已知数列
满足__________,求
的前
项和
.(如果选择多个条件分别解答,按第一个解答计分)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c7e70cccd28afcfa83940519b9692ded.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2517da6066a54438ed740a2485d10ebc.png)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/40dc43b8d11d5462e4b525dd7b03bcfc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
(2)在①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5653b60d16ec4e653518f0562680250.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/762489bb5adde61d47074082de4ed589.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a9c57c75e55c4cb06db6c6abb73132d0.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/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1ae9a3b0b7aeb1545b65d91aa371b3c.png)
您最近一年使用:0次
2021-12-04更新
|
821次组卷
|
4卷引用:山东省菏泽市郓城县郓城第一中学2022-2023学年高二上学期期末数学试题
解题方法
9 . 已知数列
的前
项和为
,且
,
.
(1)求数列
的通项公式;
(2)设
,数列
前
项和为
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f67fd0eb54561cd1df683a08cf049bfc.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/b065334d8f60c49f4bd3d9f1373fe4cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cec0e0155f66c9d8804482da899c20ea.png)
(1)求数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f67fd0eb54561cd1df683a08cf049bfc.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af49d87ac52004607e58bdac29297783.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.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/aa33d6f116c61ab89224c1a9886861cd.png)
您最近一年使用:0次
10 . 已知数列
的前
项和为
,在①
②
,③
这三个条件中任选一个,解答下列问题.
(1)求出数列
的通项公式;
(2)若设
,数列
的前
项和为
,证明:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f9928e46511e601913619a427ded84a3.png)
注:如果选择多个条件分别解答,按第一个解答计分.
![](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/2edeb1f47dfcc97e3317bd3b66c84517.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33d3ad744c3967aa85dead18e9d17cfa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/610bf0995865773e408651b22c229033.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af86bc4de5ef8fb1c97ca66ef4720a65.png)
(1)求出数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
(2)若设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7484eb1c64c64773677976d8e6281af4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5da72309d2507e2f5e5ed88d8cc08963.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/f9928e46511e601913619a427ded84a3.png)
注:如果选择多个条件分别解答,按第一个解答计分.
您最近一年使用:0次
2021-11-12更新
|
2783次组卷
|
5卷引用:山东省淄博市淄博中学2023-2024学年高二下学期第一次月考数学试题