1 . 在各项均为正数的数列
中,
,
,
.
(1)证明数列
为等比数列,并求数列
的通项公式;
(2)若
,记数列
的前n项和为
.
(i)求
;(ii)证明:
.
![](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/31d6f2badbd8d89c8248187347ada7a7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1f602bddae6a8311890fa7ae56ad4e1.png)
(1)证明数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51fec2729d8e927de9392ee90d1e0389.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6e05e678d606c4068c87ba2e7826c86.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
(i)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6dea1ec75bfb7f94e6cb8004de8b7871.png)
您最近一年使用:0次
2 . 已知数列
是正项等比数列,
是等差数列,且
,
,
,
(1)求数列
和
的通项公式;
(2)
表示不超过x的最大整数,
表示数列
的前
项和,集合
共有4个元素,求
范围;
(3)
,数列
的前
项和为
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76aef4cdcb5af742ce28003b7b6c8c20.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f329b217e1051b23f0d61023cdc6e69.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd5c206e70fdd64f4a3271fa68e5b2ef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8c519b98e1955f805ad21af88991e0e8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/471584358a4c23a08378b2d8fa02c8c4.png)
(1)求数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76aef4cdcb5af742ce28003b7b6c8c20.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f329b217e1051b23f0d61023cdc6e69.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25f161c2a3717f1b6c62d0d7dae0b606.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c6ef48976a52cc4a2be7c46a98426c0a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c10588e175c133b5387712aae98af243.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b17a9b9bb8bf6bb9865e37f204da5c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/14e16e1c1834634d4b30d9f31e060678.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
(3)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0174f17b1d390bdb979d33afe3625011.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5ab0309e2cd35585ea9fb2cc3017abf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2d51f9147b8265c0276c1f2c2659197.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b9a0d7150fb24be3e28ef7f0e18be93.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27f571bc084678145358463c81ea8d55.png)
您最近一年使用:0次
2024-01-22更新
|
925次组卷
|
2卷引用:天津市八校联考2023-2024学年高三上学期期末质量调查数学试卷
3 . 对于数集
(
为给定的正整数),其中
,如果对任意
,都存在
,使得
,则称X具有性质P.
(1)若
,且集合
具有性质P,求x的值;
(2)若X具有性质P,求证:
;且若
成立,则
;
(3)若X具有性质P,且
,求数列
的通项公式.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4622c700325a90d453e6300b886a8e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0704f453b2de48d36911f7db496bbf82.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d0bc1a0bba5e6e8ddf6f1f60f78e6490.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/887982e3735dd7ca13293338a12df593.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6dbbefb5a9955cdbe090c5f0b8a8d37.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43cbab5722e0fb2df79a07cfe8f1164b.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b7511e6ce72a5232820b7007f976be9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/864dd49f786346bc320deace92f949b0.png)
(2)若X具有性质P,求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7551ee6e86b2c6e79236dfe3e2e2c24b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/346549f9adda7eb363f16d355ae68b85.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87a60302649eb940748da818199e55da.png)
(3)若X具有性质P,且
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/573502cfaa4baf7c0db4b4a294015f3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1fe1c31a81f198c443e71b83ca662939.png)
您最近一年使用:0次
4 . 已知数列
是首项为1的等差数列,数列
是公比不为1的等比数列,满足
,
,
.
(1)求
和
的通项公式;
(2)求数列
的前
项和
;
(3)若数列
满足
,
,记
.是否存在整数
,使得对任意的
都有
成立?若存在,求出
的值;若不存在,说明理由.
![](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/84672a737e1ba65228ffd2f0064a8c9b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/40751e69baead4a0d5bea384aedfa6c1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dbe8fa82ab04f0a4ba4ad1c570c9aa1.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
(2)求数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aec4bdc2a6d4fc387dc621f0b5a268c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
(3)若数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b783cf91e34e692ce8e171f0965cb53f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dea6578afabc23f5d7041b88c3790dd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/614bac93e838d86d18422bed438368df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b02b03f064cffd092bba6be3bfc95ecc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1505d56f0b35fe7f2de1fe1888036e4c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/414847d018e36898bde4a88772c1d2c1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
2023-11-30更新
|
1173次组卷
|
3卷引用:天津市南开中学2023-2024学年高三上学期第二次月考数学试卷
23-24高二上·上海·期末
名校
解题方法
5 . 等差数列
的通项是
,等比数列
满足
,
,其中
,且
、
、
均为正整数.有关数列
,有如下四个命题:
①存在
、
,使得数列
的所有项均在数列
中;
②存在
、
,使得数列
仅有有限项(至少1项)不在数列
中;
③存在
、
,使得数列
的某一项的值为2023;
④存在
、
,使得数列
的前若干项的和为2023.
其中正确的命题个数是( )个
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/47dee512e0fdb19fc03858ce717ce8b7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e2bbf31fb1a86e83addff6da757cf77.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/829cf419f1e1f24c133abf13c9297416.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4c6ce38a0fd768057f68821bac022b4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
①存在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
②存在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
③存在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
④存在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
其中正确的命题个数是( )个
A.0 | B.1 | C.2 | D.3 |
您最近一年使用:0次
6 . 已知
是各项均为正数的等比数列,其前n项和为
,
,且
,
,
成等差数列.
(1)求数列
的通项公式;
(2)设
,求数列
的前
项和
;
(3)设
,
,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/28c40980226328591a49bf85b56b9562.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e02b512e23eadd2810ab21e2e993b712.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3272ce4d31d66c1d408225b997e3a73d.png)
(1)求数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd2e7b7b013102caae359e4841f8e7a3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2d51f9147b8265c0276c1f2c2659197.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fbd85b79372dc6e596d465f738c3c300.png)
(3)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f275914ae76c22daf8773fc406f0524c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/930bc56406e69b785b37a83d48e36724.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5954dc771c811c8eced9e4c9a19d45ba.png)
您最近一年使用:0次
名校
解题方法
7 . 设数列
的前n项之积为
,满足
.
(1)设
,求数列
的通项公式
;
(2)设数列
的前n项之和为
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1ae9a3b0b7aeb1545b65d91aa371b3c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29ff15db2bcd9e1cc16e1ddb0771c04c.png)
(1)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/053d9fad71c6a99176ef247e41a9c2ad.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/686ece75006ad358f23314dc8a246e11.png)
(2)设数列
![](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/25f15df518e4d758438e02807c7ffd34.png)
您最近一年使用:0次
名校
8 . 如图,在
中,
是
边上一点,且
,
为直线
上一点列,满足:
,且
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af9bbe98100c8067ff36ac536d043a85.png)
___________ ,设数列
,则
的通项公式为___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b5924265437018c82f0e887fba99daad.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5249105992198a3cbd7a4a643e5a1ce8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f406d1d51975809d406a561d4d9d18e4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ecf69901899bba130968c7a091790d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af9bbe98100c8067ff36ac536d043a85.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88d48868b259993d0000b7c47525ebcb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
您最近一年使用:0次
2022-12-05更新
|
1152次组卷
|
7卷引用:黑龙江省哈尔滨市第九中学校2022-2023学年高三上学期第三次月考数学试题
黑龙江省哈尔滨市第九中学校2022-2023学年高三上学期第三次月考数学试题天津市滨海新区大港第一中学2022-2023学年高三上学期1月阶段性测试数学试题江苏省盐城市响水中学2022-2023学年高二下学期期末模拟数学试题福建省厦门外国语学校2024届高三上学期期中考试数学试题(已下线)专题05 数列 第一讲 数列的递推关系(分层练)(已下线)【讲】专题10 数列与其它知识的交汇问题(已下线)【练】 专题9 与图表有关的数列问题
9 . 数列
满足
,
,
,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/b065334d8f60c49f4bd3d9f1373fe4cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5cfb19f0c37a72b33083ae9319f11a74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f093c61867ee4ce75f951d46b9b123.png)
A.当![]() ![]() |
B.当![]() ![]() |
C.当![]() ![]() |
D.当![]() ![]() ![]() |
您最近一年使用:0次
10 . 已知数列{
}为有限项数列,项数为
),若对任意
且
都有
|,则称{
}是“Ω数列”
(1)判断数列3,2,4,1,5,6和2,4,1,5,6是否是“Ω数列”(无需说明理由);
(2)已知{
}为项数
的等比数列,
,若{
}是“Ω数列”,求其公比q的取值范围;
(3)已知{
}是1,2,3,……,2022的一个排列,令
),若{
}和{bn}都是“Ω数列”,求
的所有可能值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96abfe2da27a63e6affb19a0c80236d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/291c7c9ea3971a28408f53d299c20062.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5516f33fabad3e4ef285fe740e858fe1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7399fcd570d1de4057f2059759d18cc9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d62f9b6b1ae4aac8b8d7e480ced8b1c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96abfe2da27a63e6affb19a0c80236d9.png)
(1)判断数列3,2,4,1,5,6和2,4,1,5,6是否是“Ω数列”(无需说明理由);
(2)已知{
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96abfe2da27a63e6affb19a0c80236d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3afa6e51b3b27c3edb330cd7f190b6cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b065334d8f60c49f4bd3d9f1373fe4cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96abfe2da27a63e6affb19a0c80236d9.png)
(3)已知{
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96abfe2da27a63e6affb19a0c80236d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7cb4dba7ddd499538147b2359ae77d71.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96abfe2da27a63e6affb19a0c80236d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e72adb45c60c2f63b46e65ff787302bf.png)
您最近一年使用:0次