名校
1 . 等比数列
的前
项积为
,并且满足![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7450f583d814558a69a256222d39440c.png)
,现给出下列结论:①
②
;③
是
中的最大值;④使
成立的最大自然数
是2019,期中正确的结论个数是( )
![](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/f1ae9a3b0b7aeb1545b65d91aa371b3c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7450f583d814558a69a256222d39440c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a29896e260b08b42e5bbba68fdb6e17f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32cd104e206fd2c3c8ec883f5e71c10d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd5c818f947346efdfb7bf7a8de0b6f3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/229f7ddd12d9f8e5cda2f15ef3660f7d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1ae9a3b0b7aeb1545b65d91aa371b3c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c6ae93e401b499b0e39f251279b5663c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
A.1 | B.2 | C.3 | D.4 |
您最近一年使用:0次
2020-03-02更新
|
587次组卷
|
3卷引用:上海市上海外国语大学附属上外高中2019-2020学年高二上学期期中数学试题
名校
2 . 设等比数列
的公比为
,其前
项之积为
,并且满足条件:
,
,
,给出下列结论:①
;②
;③
是数列
中的最大项;④使
成立的最大自然数等于4031;其中正确结论的序号为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d471926f7b27322d90c82b9ce21d3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.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/8141d87fb02b08c88b0c9f27f839a7d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c0fd8c68054203a659c797f45ed4032.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1b5524cf67617d7a9d8db51fdca51aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ca664b1e82da6f50064a76fe118aa80.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10f9bf59963891a01f5558bef0e23720.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13b0438e080c9c7ffaa506bb0c1c1a8a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5eded65284816fdf6bf335b0c2a78e6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c6ae93e401b499b0e39f251279b5663c.png)
您最近一年使用:0次
3 . 在等比数列
中,首项
,则
是递增数列的充要条件是公比q满足( ).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/179513ce80436471efbe1d9b31735f7d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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4 . 设数列
的前
项和为
,已知
,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9f43bd2958ff6ac134b06501e5743f4.png)
(1)设
证明数列
是等比数列;
(2)求数列
的通项公式;
(3)若对于一切
,都是
恒成立,求
的取值范围.
![](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/e7fab51121848ce166035ceab6f4e00b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9f43bd2958ff6ac134b06501e5743f4.png)
(1)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/35334108a992e39680b5aa673d4ccafd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5fce83115a50f99e08e9a2db7267aeed.png)
(2)求数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d471926f7b27322d90c82b9ce21d3d.png)
(3)若对于一切
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cea4ac187cbb465180e89f38250b3970.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bbb71aacea5a3e019c3d081428834f85.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
5 . 已知
是递增的等比数列,且
,那么首项
的取值范围是_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d471926f7b27322d90c82b9ce21d3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a800629ef14277571f91a46c1dbc05d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e72adb45c60c2f63b46e65ff787302bf.png)
您最近一年使用:0次
2020-02-09更新
|
448次组卷
|
4卷引用:2016届上海市嘉定区高三第三次模拟练习(理)数学试题
2016届上海市嘉定区高三第三次模拟练习(理)数学试题2016届上海市嘉定区高三第三次模拟练习(文)数学试题2016届上海市嘉定区高考三模(文科)数学试题(已下线)专题8 等比数列的单调性 微点1 判断等比数列单调性的方法
名校
6 . 已知数列
为等比数列,则“公比
”是“
为递增数列”的( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eda6dc559d07bc22c9a0ed1e3a6d01d2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
A.充分非必要条件 | B.必要非充分条件 |
C.充要条件 | D.既非充分也非必要条件 |
您最近一年使用:0次
2020-12-03更新
|
508次组卷
|
3卷引用:上海市曹杨二中2020-2021学年高二上学期期中数学试题
7 . (1)已知数列
为等差数列,其前n项和为
.若
,试分别比较
与
、
与
的大小关系.
(2)已知数列
为等差数列,
的前n项和为
.证明:若存在正整数k,使
,则
.
(3)在等比数列
中,设
的前n项乘积
,类比(2)的结论,写出一个与
有关的类似的真命题,并证明.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6f18f2c2ec67b5e59e4b3d28795d125.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04b3b63a977f2eb91a87f8eadd3ab078.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3549a6c9f727de6be285bcaa281f2f48.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83c2d5971afbff8eca1b9aff5f76f710.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/530f5b63e797195906285c0c03eb9276.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05cde56d89850b5e4ba6ee17240b4cd8.png)
(2)已知数列
![](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/e6f18f2c2ec67b5e59e4b3d28795d125.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d8e90d52301bbdbe6162603db405020.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aea732c79fa31c37f67e7446a66ec476.png)
(3)在等比数列
![](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/fdfa10960d976a70c8b6625cc6451e8f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b5056d12487759b2fe1944612639d39.png)
您最近一年使用:0次
名校
8 . 已知公差
的等差数列
的前
项和为
,且满足
,
.
(1)求数列
的通项公式;
(2)求证:
是数列
中的项;
(3)若正整数
满足如下条件:存在正整数
,使得数列
,
,
为递增的等比数列,求
的值所构成的集合.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4ce64685821c3e55c07f151996ca8c3.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/e1d61fe1a71a6ad5db1172765f51db0d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c80735b4ccb365831ac19a2ad06d3973.png)
(1)求数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
(2)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f430a3281e43531c4bf554599313eae8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
(3)若正整数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e88093a749c0d46e0ee931ecfaff925.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/681ae1522a36768618f7ddaf74abbb7e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f255d0395fba51ca2d44293cca42e0a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
9 . 在等比数列
中,
,当
时,
恒成立,则公比q的取值范围是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c1b3fbef5ad547840b030fc189f2f892.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c8b65a4d57a8fb5c97c0449fd5ae67f1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0515775e751e33b3df49f5ee93c6792.png)
您最近一年使用:0次
2020-06-26更新
|
323次组卷
|
6卷引用:沪教版(上海) 高二第一学期 新高考辅导与训练 第7章 数列与数学归纳法 阶段训练2
沪教版(上海) 高二第一学期 新高考辅导与训练 第7章 数列与数学归纳法 阶段训练2(已下线)2.4+等比数列(2)(基础练)-2020-2021学年高二数学十分钟同步课堂专练(人教A版必修5)(已下线)4.3.1 等比数列(2)(基础练)-2020-2021学年高二数学十分钟同步课堂专练(人教A版选择性必修第二册)(已下线)4.2等比数列及其通项公式(第1课时)(作业)(夯实基础+能力提升)-2022-2023学年高二数学精品教学课件(沪教版2020选择性必修第一册)(已下线)4.3.1 等比数列的概念(1) B提高练(已下线)【新教材精创】5.3.1 等比数列 -B提高练
名校
10 . 已知等差数列
满足:
,从
中依次取出
构成等比数列
,其中![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cbc4ae88d21627363c2bb68db487d3d4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/365696de7e080f61972c3395752776df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df080422b624f499ed6b5d30f7743e0d.png)
.
(1)求数列
、
的通项公式;
(2)若对于任意
,
恒成立,求实数M的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ac5a5a71056c2c26ec31e7a7a0f1ca6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/254b87184d8643fd368468cab70b9c9c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cbc4ae88d21627363c2bb68db487d3d4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/365696de7e080f61972c3395752776df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df080422b624f499ed6b5d30f7743e0d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fefbeb5ad23b937db910598099ea44c0.png)
(1)求数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/272b44a71d0bec02b3c4f3f05304f942.png)
(2)若对于任意
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d38b6286e5f74b604b9fb639c55d611f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a3e15195dbfa0ac1e968d2663bbc34b.png)
您最近一年使用:0次
2020-03-29更新
|
285次组卷
|
5卷引用:江苏省苏州市实验中学2019-2020学年高二上学期阶段性调研(二)数学试题
江苏省苏州市实验中学2019-2020学年高二上学期阶段性调研(二)数学试题(已下线)4.2 等比数列(第2课时)(六大题型)(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)4.3.2.2 等比数列的前n项和的性质及应用(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)专题8 等比数列的单调性 微点2 等比数列单调性综合训练(已下线)专题4.3 等比数列(5个考点八大题型)(2)