名校
1 . 已知数列{an}和{bn}都是等差数列,且其前n项和分别为Sn和Tn,若=
,则
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解题方法
2 . 已知数列的前n项和
,则通项公式
=
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3 . 如图,已知正方形
的边长为2,分别取边
的中点
,并连接形成正方形
,继续取边
的中点
,并连接形成正方形
,继续取边
的中点
,并连接形成正方形
,依此类推;记
的面积为
的面积为
,依此类推,
的面积为
,若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f3cb8d72bb2e281b943b3b430138ef7.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc3d2faa297324af40f0ea27ac7e653c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9651011a8533cfdd7988e61495bbf039.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d659d5601d47fc8e580788f8bfc2cab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632f2bf1cd0435041fa04b01901d1c8c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/efa87ea03c832e1f4ce4d3256055c721.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/65d88169cf2f7701c7e6ed7c1ee32171.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5bf350a619ef25d8d9b988f3db804e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e55e287d09dfa42b27ac66a3ac808db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d4abedd7d123e37eeb9188c7d64d072.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf95b2e03d60a1ecc36447e2c25bd8e6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ed4684aedf3debd9c5112d925ff78b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ddabf77e63bb043fa06ce23b6a8bce0d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94c58e4415c09a8f9471ce7b806eba50.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d923f48adfae8d66a75240e570371c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96abfe2da27a63e6affb19a0c80236d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ae160c36edf1f8025b4efe1b2355862.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f3cb8d72bb2e281b943b3b430138ef7.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/19/4b0609ba-5937-479a-a046-434d345cfa21.png?resizew=269)
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解题方法
4 . 已知数列
满足
,点
在直线
上.
(1)求证:数列
是等比数列,并求出
的通项公式;
(2)求满足
的
的取值构成的集合.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b065334d8f60c49f4bd3d9f1373fe4cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/422f193af7d1ac23b3b60aee220c88b4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04eed461026f69fe9ab2c5dc12af8ac7.png)
(1)求证:数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/345edc602f5c52122b91e6864902fb8a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
(2)求满足
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2bad75ac04cfbb5d0ae4cf19517d1fd4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
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解题方法
5 . 已知数列
满足
是
的前
项和,下列说法正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62e567d7e9761951a266953c8d5042ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/65d4c5d884f1470964f2b8f511b23388.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
A.若![]() ![]() |
B.若![]() ![]() |
C.若![]() ![]() |
D.若![]() ![]() |
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解题方法
6 . 已知等差数列
前
项和为
,满足
.数列
满足
,
.
(1)求数列
的通项公式;
(2)设数列
满足
,求数列
的前
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/66434a53f67227e87aea0bfcc1a5acc5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/385275d29d8c8a7841eaeaa3dfab2cdb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a8ac5c980da061e86943ff7a3471701.png)
(1)求数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62e567d7e9761951a266953c8d5042ac.png)
(2)设数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57ef6d44448092ebdb9e4a49d866a749.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d038bdd476401b548cb5fe8e50e82a.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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解题方法
7 . 已知等差数列
的前
项和为
,且
,则下列说法错误的是( )
![](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/e4933d0202cb25c281bb91b0591cf7e7.png)
A.![]() | B.![]() |
C.数列![]() | D.![]() ![]() |
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|
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5卷引用:浙江省金华市卓越联盟2023-2024学年高二上学期12月阶段联考数学试卷
浙江省金华市卓越联盟2023-2024学年高二上学期12月阶段联考数学试卷(已下线)第4章:数列章末重点题型复习-【题型分类归纳】2023-2024学年高二数学同步讲与练(苏教版2019选择性必修第一册)(已下线)第四章:数列章末重点题型复习-2023-2024学年高二数学题型分类归纳讲与练(人教A版2019选择性必修第二册)(已下线)专题23 等差数列前n项和的比值问题及等差数列前n项和的最值问题(期末选择题23)2023-2024学年高二数学上学期期末题型秒杀技巧及专项练习(人教A版2019)(已下线)第4.2.2讲 等差数列前n项和的应用(第2课时)-2023-2024学年新高二数学同步精讲精练宝典(人教A版2019选修第二、三册)
名校
8 . 已知在等比数列
中,
,则
的值是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f26610e8d44f6a4ad1fce0caeb84037.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5da4cd81500bdb43118150dbdb1541e6.png)
A.4 | B.-4 | C.![]() | D.16 |
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2023-12-21更新
|
1060次组卷
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3卷引用:浙江省金华市卓越联盟2023-2024学年高二上学期12月阶段联考数学试卷
浙江省金华市卓越联盟2023-2024学年高二上学期12月阶段联考数学试卷(已下线)第四章:数列章末重点题型复习-2023-2024学年高二数学题型分类归纳讲与练(人教A版2019选择性必修第二册)山东省泰安市泰安一中2023-2024学年高二上学期期末数学试题
9 . 正项数列
中,
,对任意
都有
.
(1)求数列
的通项公式及前
项和
;
(2)设
,试问是否存在正整数
,使得
成等差数列?若存在,求出所有满足要求的
;若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b065334d8f60c49f4bd3d9f1373fe4cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a37a59558292ad6b3d0978bfd7484990.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f44dc4c4ed80420af8e5dbac7a12b5ef.png)
(1)求数列
![](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)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8da9c93911c62cb0604be5835400d74f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c02ed2127693ea75aa7e1fe1e1aa06eb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b4f74da59a581752f49cc43007ef6a0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c02ed2127693ea75aa7e1fe1e1aa06eb.png)
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10 . 已知数列
是公差不为0的无穷等差数列,
是其前
项和,若
存在最大值,则( )
![](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/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
A.在![]() ![]() |
B.在![]() ![]() |
C.在![]() ![]() |
D.在![]() ![]() |
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2023-11-14更新
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4卷引用:浙江省金华市武义第一中学2023-2024学年高二上学期12月检测2数学试题
浙江省金华市武义第一中学2023-2024学年高二上学期12月检测2数学试题浙江省金华第一中学2023-2024学年高二上学期11月期中数学试题(已下线)4.1 等差数列(第2课时)(十三大题型)(分层练习)-2023-2024学年高二数学同步精品课堂(沪教版2020选择性必修第一册)(已下线)专题03 等差数列(二十三大题型+过关检测专训)(3)