1 . 数列
的前
项和为
,且对任意正整数
,都有
;
(1)试证明数列
是等差数列,并求其通项公式;
(2)如果等比数列
共有2017项,其首项与公比均为2,在数列
的每相邻两项
与
之间插入
个![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d6457cfb4eb6f0f646452bef7560e725.png)
后,得到一个新数列
,求数列
中所有项的和;
(3)如果存在
,使不等式
成立,若存在,求实数
的范围,若不存在,请说明理由;
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5fce83115a50f99e08e9a2db7267aeed.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/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/033aa83400bc9291900b425cfa3acfac.png)
(1)试证明数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5fce83115a50f99e08e9a2db7267aeed.png)
(2)如果等比数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d471926f7b27322d90c82b9ce21d3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d471926f7b27322d90c82b9ce21d3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/50a272adba0f1120109824440f0e252c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4b8d5b6045219ea4527202ab131bb2e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c05b9832b09731a574d4a4adf7448de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d6457cfb4eb6f0f646452bef7560e725.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a07c3b1b0ec260855f690cf286085ab6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38ef4c4439b36c2847b0056a116d56d4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38ef4c4439b36c2847b0056a116d56d4.png)
(3)如果存在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cea4ac187cbb465180e89f38250b3970.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/291c82e3d8e2946f0c5ceead3e115c06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
您最近一年使用:0次
名校
2 . 对于项数为
(
)的有穷正整数数列
,记
(
),即
为
中的最大值,称数列
为数列
的“创新数列”.比如
的“创新数列”为
.
(1)若数列
的“创新数列”
为1,2,3,4,4,写出所有可能的数列
;
(2)设数列
为数列
的“创新数列”,满足
(
),求证:
(
);
(3)设数列
为数列
的“创新数列”,数列
中的项互不相等且所有项的和等于所有项的积,求出所有的数列
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e34f42b3be15518c29e3689c9fe6d6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d471926f7b27322d90c82b9ce21d3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66ad15dfc560ea83b94df4f81f43ebf7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/131f3b6326e48c356b6d4a3901bcadef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/233427826eb2233641fc3a9805f6d206.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb4f58ba5bcf724190d4b7164ff85aca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f1ce1d77a0a00432fccf2a0b3b85dc8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d471926f7b27322d90c82b9ce21d3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/522bc03934ea5b3acadc4c02398c2d24.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84bff444d5f349081b27e76a2f4f9dfc.png)
(1)若数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d471926f7b27322d90c82b9ce21d3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f1ce1d77a0a00432fccf2a0b3b85dc8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d471926f7b27322d90c82b9ce21d3d.png)
(2)设数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f1ce1d77a0a00432fccf2a0b3b85dc8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d471926f7b27322d90c82b9ce21d3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e34bb06f9f1f2f4a23a45da3fd0ad2a7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/131f3b6326e48c356b6d4a3901bcadef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc631d51fcb8adfef863d79c7af51098.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/131f3b6326e48c356b6d4a3901bcadef.png)
(3)设数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f1ce1d77a0a00432fccf2a0b3b85dc8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d471926f7b27322d90c82b9ce21d3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f1ce1d77a0a00432fccf2a0b3b85dc8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d471926f7b27322d90c82b9ce21d3d.png)
您最近一年使用:0次
2018-04-02更新
|
714次组卷
|
6卷引用:4.3数列的概念与性质(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(沪教版2020选择性必修第一册)
(已下线)4.3数列的概念与性质(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(沪教版2020选择性必修第一册)北京市城六区2018届高三一模理科数学解答题分类汇编之压轴创新题北京市顺义区第二中学2022届高三适应性测试数学试题石景山区2018年高三理科数学统一测试(一模)上海市吴淞中学2018-2019学年高二上学期期末数学试题(已下线)上海市华东师范大学第二附属中学2019-2020学年高二上学期10月月考数学试题
名校
3 . 如图,一个粒子的起始位置为原点,在第一象限内于两正半轴上运动,第一秒运动到(0,1),而后它接着按图示在
轴、
轴的垂直方向来回运动,且每秒移动一个单位长度,如图所示,经过
秒时移动的位置设为
,那么经过2019秒时,这个粒子所处的位置的坐标是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10b328845a4b1881eee38084d5501224.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf83e20035c3afd6d26ebfd53d768a70.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/31/e9366a00-6134-4d79-9be6-9f8712e0cddc.png?resizew=185)
您最近一年使用:0次
名校
4 . 已知正项数列
的前
项和为
,对任意
且
.
(1)证明:数列
为等差数列,并求数列
的通项公式;
(2)若
,求数列
的前
项和为
.
![](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/fc8baf05f1ac4d7570d3f1f78b9258ad.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1dfe5b322577f02fd19caab8cf20170.png)
(1)证明:数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/216876de04325fd250c38c485cbc34b7.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)
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2011·新疆·一模
名校
5 . 已知1、
、
、9成等差数列,1、
、
、
、9成等比数列,且
、
、
、
、
都是实数,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57b8ac5e02a7b900e0d62593e752f231.png)
________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e72adb45c60c2f63b46e65ff787302bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e88093a749c0d46e0ee931ecfaff925.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b715e7842b95f654f16056a7c7f2abe9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13423c094861baf4b759b7f3d8c3c226.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57483e04fd1840c87ac5325157149877.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e72adb45c60c2f63b46e65ff787302bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e88093a749c0d46e0ee931ecfaff925.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b715e7842b95f654f16056a7c7f2abe9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13423c094861baf4b759b7f3d8c3c226.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57483e04fd1840c87ac5325157149877.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57b8ac5e02a7b900e0d62593e752f231.png)
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2016-11-30更新
|
1283次组卷
|
4卷引用:第03讲 等比数列及其前n项和 (高频考点—精讲)-2
(已下线)第03讲 等比数列及其前n项和 (高频考点—精讲)-2(已下线)2011届新疆农七师高级中学高三第一次模拟考试数学文卷河南省南阳市第一中学校2021-2022学年高二上学期第一次月考数学试题河南省南阳市唐河县唐河县第一高级中学2022-2023学年高二下学期3月月考数学试题
6 . 已知三个数
,
,
成等比数列,其倒数重新排列后为递增的等比数列
的前三项,则能使不等式
成立的自然数
的最大值为 __________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/008e77135f850cd4beab452480a591d6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83666674f1111c699d7c5f7b792e0285.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7fbb9c306da912756c1292f5a9988d91.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d471926f7b27322d90c82b9ce21d3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b27434fcec11af4ece701e3a39d65d4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
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11-12高三上·江苏·阶段练习
名校
7 . 已知常数
,数列
的前
项和为
,
且
.
(1)求证:数列
为等差数列;
(2)若
,且数列
是单调递增数列,求实数
的取值范围;
(3)若
,数列
满足:
对于任意给定的正整数
,是否存在
,使
?若存在,求
的值(只要写出一组即可);若不存在,说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20849c00c47cbdc43f18d53341b6c4e5.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/b065334d8f60c49f4bd3d9f1373fe4cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea73a8c287424d6281822f8a340106e6.png)
(1)求证:数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60e8f700816151c538d07e6bc7532550.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/200f24e682c93e02a87f3f9d57dc5d40.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57ef6d44448092ebdb9e4a49d866a749.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8881be0063af5f5008a97ff17a4681da.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f11539515797827d90a6c9f161d82346.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e62f7e42856aa40f3b1a1d8890762cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0cd5371a6f0f82c65dd22f75f8b807c1.png)
您最近一年使用:0次
8 . 已知等差数列{
}的前n项和为Sn,公差d>0,且
,
,公比为q(0<q<1)的等比数列{
}中,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0da3dc6065a345f192468df5f441d9eb.png)
(1)求数列{
},{
}的通项公式
,
;
(2)若数列{
}满足
,求数列{
}的前n项和Tn.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96abfe2da27a63e6affb19a0c80236d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82998e334b4dd8a1c285643342598fd7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc0b6222a878d450539b2374906a68f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/686ece75006ad358f23314dc8a246e11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0da3dc6065a345f192468df5f441d9eb.png)
(1)求数列{
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96abfe2da27a63e6affb19a0c80236d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/686ece75006ad358f23314dc8a246e11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96abfe2da27a63e6affb19a0c80236d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/686ece75006ad358f23314dc8a246e11.png)
(2)若数列{
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c59e7c7a84a4bdb959e95536d0404ceb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b812d4eb1cff49beffb2850fd931db2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c59e7c7a84a4bdb959e95536d0404ceb.png)
您最近一年使用:0次
2017-11-22更新
|
649次组卷
|
3卷引用:人教A版(2019) 选修第二册 实战演练 全册综合验收检测