1 . 在数列
中,已知
是首项为1,公差为1的等差数列,
是公差为
的等差数列,其中
,则下列说法正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acd69e9c65c3d9f4ff296dda32962f05.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c575a36995464ba27e577cda51f97ff7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ddffb82a65f1d00801546895d349a75.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1933b7c3ace69622339353431c519b13.png)
A.当![]() ![]() | B.若![]() ![]() |
C.若![]() ![]() | D.当![]() ![]() |
您最近一年使用:0次
2021-12-06更新
|
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6卷引用:江苏省南通市海安市2021-2022学年高三上学期期中数学试题
江苏省南通市海安市2021-2022学年高三上学期期中数学试题(已下线)高二数学下学期期中精选50题(压轴版)2021-2022学年高二数学下学期考试满分全攻略(人教A版2019选修第二册+第三册)(已下线)重难点05五种数列通项求法-1江苏省泰兴中学、南菁高级中学、常州市第一中学三校2022-2023学年高三上学期第二次联考数学试题湖南省株洲市第二中学2022-2023学年高三上学期12月教学质量检测数学试题(B)河北省石家庄市鹿泉区精英华唐艺术学校2023-2024学年高二上学期期末模拟数学试题
2 . 分形几何学是一门以不规则几何形态为研究对象的几何学,分形几何具有自身相似性,从它的任何一个局部经过放大,都可以得到一个和整体全等的图形
如下图的雪花曲线,将一个边长为
的正三角形的每条边三等分,以中间一段为边向形外作正三角形,并擦去中间一段,得图(2),如此继续下去,得图(3)
,记
为第
个图形的边长,记
为第
个图形的周长,
为
的前
项和,则下列说法正确的是( )
![](https://img.xkw.com/dksih/QBM/2021/11/24/2858222095712256/2859242058145792/STEM/636dbddfcbac414fbb10d73906277a2b.png?resizew=383)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c90282d4a37c9a20620d4bbb0c263cae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/daa5e9bd516f6282483b92cfe6074623.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/334b1840b7511ce29f3e7307d6a5e602.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7005f80146e6e882aadc7d8a863c765c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b708c8dcb2d66eb2ce0b3718a9cd924a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/334b1840b7511ce29f3e7307d6a5e602.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://img.xkw.com/dksih/QBM/2021/11/24/2858222095712256/2859242058145792/STEM/636dbddfcbac414fbb10d73906277a2b.png?resizew=383)
A.![]() |
B.![]() |
C.若![]() ![]() ![]() ![]() ![]() ![]() |
D.若![]() ![]() ![]() |
您最近一年使用:0次
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907次组卷
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3卷引用:重庆市缙云教育联盟2021-2022学年高一上学期11月质量检测数学试题
重庆市缙云教育联盟2021-2022学年高一上学期11月质量检测数学试题(已下线)第4章 数列(单元提升卷)-2021-2022学年高二数学下学期考试满分全攻略(人教A版2019选修第二册+第三册)1.3等比数列检测题 B卷(综合提升)
解题方法
3 . 设等差数列
的前
项和为
,且
,
.
(1)求数列
的通项公式;
(2)设数列
的前
项和为
,且
(其中
是非零的实数),若
,
,
成等差数列,问
,
,
能成等比数列吗?说明理由;
(3)设数列
的通项公式
,是否存在正整数
、
,使得
,
,
成等比数列?若存在,求出所有
、
的值;若不存在,说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4be2164a2c67d6163faee87a10942bb.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/ae2e6956e0073cef684fef6a16bead0a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cde13a1d82174255f34cc22f8127787b.png)
(1)求数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4be2164a2c67d6163faee87a10942bb.png)
(2)设数列
![](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/f1ae9a3b0b7aeb1545b65d91aa371b3c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d810a4c29f75c5e007d1dbd4397c276.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2bb192110266d1aefe5a1de2adcc927e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ebc3123d1a95e8032be7a82261807a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3cf40c3b4e46c1c52d7eadff64a9ec4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/129a17d04ac7412d464734db02b34a29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3cf40c3b4e46c1c52d7eadff64a9ec4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fca01424c2c32f4c11f32639e222da3.png)
(3)设数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c88a7ef007c78a93e33bd77c4396626.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f3c5b76710991b6773280115b6b39108.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c96e72b11536ebd795243cac119ec59b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7936359df4c926b72b48c6fdae55f12d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/829442c6473c94fde041595bc18530d7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c59e7c7a84a4bdb959e95536d0404ceb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
您最近一年使用:0次
4 . 已知数列
满足
,
,若
,且存在
,使得
成立,则实数
的取值范围是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d471926f7b27322d90c82b9ce21d3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86fc336b4a83bf6d66c4afcc431597f8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/493454901587bed42aed338456b3b4d0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aeb7724afb8028c28f5dd90e04179e21.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e145b6046bc80d0ffecc61ac67c87ca1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e12193b74cf4a7f2cf4f22d3f66de9e2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
2021-11-11更新
|
1232次组卷
|
8卷引用:安徽省淮南第一中学2021-2022学年高三上学期第三次月考理科数学试题
安徽省淮南第一中学2021-2022学年高三上学期第三次月考理科数学试题辽宁省名校2022届高三第五次联合考试数学试题陕西省榆林市府谷中学、绥德中学2021-2022学年高一下学期第二次月考数学试题(已下线)重难点06两种数列最值求法-2(已下线)4.2.1-4.2.2 等差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)4.2.1.2 等差数列的性质及应用(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)(已下线)4.1 等差数列(第1课时)(十大题型)(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)上海市上海大学附属中学2023-2024学年高二下学期3月月考数学试卷
5 . 已知数列
满足:
,
,数列
满足:
,
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/53649b2c41f2f4cc3edac0b03031d021.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c6136b55acb69cceb1809257ff834709.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/8fd2806b23f017ba3c495629186125c8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eeed64460c340872ba18bd4410eebce4.png)
您最近一年使用:0次
6 . 已知
是等差数列,
,
是函数
的两个不同零点.
(1)求数列
的通项公式;
(2)若
,
,
,
都是数列
前
项中的项,
,
,
是公比为
的等比数列,
,
,
成等差数列.当
最大时,求
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5be425167c4cf003028d17267a0eade2.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/97626d5e7670845c781eb7fd0e7a5bf5.png)
(1)求数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5be425167c4cf003028d17267a0eade2.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/681ae1522a36768618f7ddaf74abbb7e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5566b1d828acdac47fe50216d247cfac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a93301f9e8004bf6c59804e1ae601bfa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8705064bb1ac4934b21bb5a01eff6c7e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5be425167c4cf003028d17267a0eade2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e595b1cc755cf0dd076e91cf9e9a3e5a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/681ae1522a36768618f7ddaf74abbb7e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5566b1d828acdac47fe50216d247cfac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a93301f9e8004bf6c59804e1ae601bfa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc4a1d8769679a9bb3eb8c9d29b57c94.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5566b1d828acdac47fe50216d247cfac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a93301f9e8004bf6c59804e1ae601bfa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8705064bb1ac4934b21bb5a01eff6c7e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0646b3d61c56d4c3bc52e532bea0585a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8705064bb1ac4934b21bb5a01eff6c7e.png)
您最近一年使用:0次
7 . 等差数列
的前
项和是
,数列
是等比数列,满足
,
.
(1)求数列
和
的通项公式;
(2)若
满足
,求
的前
项和;
(3)求
.
![](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/034ba25825c13725931c483aa47c9363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81906aad7084fb8ac9186fcdcd07f908.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/364f8ccb16e0dd0873291c9f351d6ffb.png)
(1)求数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57ef6d44448092ebdb9e4a49d866a749.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c0776758516eedb8854b7b45e7aecdb0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/031aa112f05654145ee48336d4b528dc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
(3)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b2d6102a31d8e07e527fc3abade3d7a.png)
您最近一年使用:0次
8 . 数列
满足:
,且对任意
,都有
.
(1)求
;
(2)设
,求证:对任意
,都有
;
(3)求数列
的通项公式
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ec31058b20a6f7f41c5873871ab0db1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36b98ef143f8159f3a7dafa1fd2f2370.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e938a131d5567ae9ff009e04dbd5730d.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed529240a883f68f0921e818addeb9c8.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c92bd1c93b24dd452d8ab96b3e608b03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36b98ef143f8159f3a7dafa1fd2f2370.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3272eec42dddfe4045bf7f911e9654b.png)
(3)求数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96abfe2da27a63e6affb19a0c80236d9.png)
您最近一年使用:0次
2021-05-14更新
|
765次组卷
|
6卷引用:上海市长宁区2021届高三二模数学试题
上海市长宁区2021届高三二模数学试题(已下线)考向14 等差数列-备战2022年高考数学一轮复习考点微专题(上海专用)上海市进才中学2021-2022学年高二上学期9月月考数学试题沪教版(2020) 选修第一册 单元训练 第4章 等差数列(B卷)(已下线)专题17 数列(模拟练)(已下线)4.1等差数列及其通项公式(第1课时)(作业)(夯实基础+能力提升)-【教材配套课件+作业】2022-2023学年高二数学精品教学课件
名校
解题方法
9 . 已知数列
是由正整数组成的无穷数列,若存在常数
,使得
,对任意的
成立,则称数列
具有性质
.
(1)分别判断下列数列
是否具有性质
;(直接写出结论)①
;②![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9260f8989cfd0ffca5a49ffbc0668f14.png)
(2)若数列
满足
,求证:“数列
具有性质
”是“数列
为常数列的充分必要条件;
(3)已知数列
中
,且
.若数列
具有性质
,求数列
的通项公式.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/31e36bff57bcfa86432b340e25e51d42.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fce92044e29a9492af22510e55950e8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cea4ac187cbb465180e89f38250b3970.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5353a6e81f046535210ca84b06c6f3c.png)
(1)分别判断下列数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/baaa78864aa6e47a10b0f1409e7c2b87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e15ffa7fecea3704dc892ea8cd513c59.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9260f8989cfd0ffca5a49ffbc0668f14.png)
(2)若数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/340e10c8ee75b0d186f6dd2551aa1689.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/baaa78864aa6e47a10b0f1409e7c2b87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
(3)已知数列
![](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/7c031ea3d46e3f04e575f817341bad06.png)
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4卷引用:2020届北京市海淀区高三一模数学试题
2020届北京市海淀区高三一模数学试题北京市第一七一中学2020-2021学年高二下学期期中考试数学试题(已下线)高二数学开学摸底考02(上海专用)(测试范围:必修三+选修一)-2023-2024学年高二数学下学期开学摸底考试卷(已下线)专题22 新高考新题型第19题新定义压轴解答题归纳(9大题型)(练习)
10 . 各项均为正数的等比数列
的前
项积为
,若
,公比
,则下列命题正确的是( )
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
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A.若![]() ![]() | B.若![]() ![]() ![]() |
C.若![]() ![]() | D.若![]() ![]() |
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4卷引用:贵州省凯里市第三中学2020-2021学年高二下学期开学考试数学试题
贵州省凯里市第三中学2020-2021学年高二下学期开学考试数学试题福建师范大学附属中学2022届高三上学期期中考试数学试题(已下线)重难点05五种数列通项求法-1(已下线)专题7 等比数列的性质 微点3 等比数列的性质综合训练