1 . 已知数列
的各项均为整数,
,
,前12项依次成等差数列,从第11项起依次成等比数列,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62ffbfb2502cc0ef8c5e1e60c567df35.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/751909460c863eaa43fa7842fdef1a78.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27168a519a0eb6862b07677ece00fe74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62ffbfb2502cc0ef8c5e1e60c567df35.png)
A.8 | B.16 | C.64 | D.128 |
您最近一年使用:0次
2018-05-09更新
|
966次组卷
|
4卷引用:2018年12月27日 《每日一题》(理数)人教必修5+选修2-1(高二上期末复习)-等差、等比数列的综合应用
(已下线)2018年12月27日 《每日一题》(理数)人教必修5+选修2-1(高二上期末复习)-等差、等比数列的综合应用(已下线)2019年5月26日 《每日一题》文数-每周一测河南省三门峡市2019-2020学年高二上学期期末数学文科试题【全国省级联考】天一大联考海南省2017-2018学年高中毕业班阶段性测试(三)文科数学试题
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
|
713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月月考数学试题石景山区2018年高三理科数学统一测试(一模)北京市顺义区第二中学2022届高三适应性测试数学试题
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 . (1)在等差数列
和等比数列
中,
,是否存在正整数
,使得数列
的所有项都在数列
中,若存在,求出所有的
,若不存在,说明理由;
(2)已知当
时,有
,根据此信息,若对任意
,都有
,求
的值
![](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/cf82c1e9501358a78d5dde6f32fd2d8d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f329b217e1051b23f0d61023cdc6e69.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76aef4cdcb5af742ce28003b7b6c8c20.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
(2)已知当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/358b212c1a075d80c221c0df5b72c8d6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f7a1e39dc65e132fa83c02cd0d91168.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/358b212c1a075d80c221c0df5b72c8d6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/31ef8f0a683e12d585877db46d28933b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e35eeaabd951fb09b2926807da3685b.png)
您最近一年使用:0次
2018高三上·全国·专题练习
5 . 已知正项等比数列
满足
成等差数列,且
.
(1)求数列
的通项公式;
(2)设
,求数列
的前n项和
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29518f13a1ebc3fff8181c2d7cfba22f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5add0bafe05f1837d7e83236b1845a7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/75e4d512b29b435582f5965dd51e0521.png)
(1)求数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29518f13a1ebc3fff8181c2d7cfba22f.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8df34359deac076c887c56b9aab22cb6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2448cf72af76b810310e4cfb9818e2e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb26cd1601fe7e76e1e2dc0b4909324a.png)
您最近一年使用:0次
14-15高三上·河北衡水·阶段练习
6 . 已知等比数列
的公比
,且
成等差数列,则
的前8项和为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/606e55241a2e145d54849129b8ffd20f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26d9b6c86435e0ceff94d8ad1cd03737.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b641071f831deb6057e799bd98ed536.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/606e55241a2e145d54849129b8ffd20f.png)
A.127 | B.255 | C.511 | D.1023 |
您最近一年使用:0次
2016-12-04更新
|
808次组卷
|
4卷引用:智能测评与辅导[理]-等比数列
智能测评与辅导[理]-等比数列(已下线)2014届河北衡水中学高三上学期第五次调研考试理科数学试卷2017届河北武邑中学高三周考10.9数学(理)试卷陕西省榆林市第十二中学2020-2021学年高三上学期第一次月考数学(文)试题
名校
7 . 设
个正数
依次围成一个圆圈,其中![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c4535ff56ef8474bad52c926606559d.png)
是公差为
的等差数列,而
是公比为
的等比数列.
(1)若
,求数列
的所有项的和
;
(2)若
,求
的最大值;
(3)当
时是否存在正整数
,满足
?若存在,求出
值;若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db483ae293e2b969b92eca4524f063fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c4535ff56ef8474bad52c926606559d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6efb87a8bd689f9b64e77a1f43baebc0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c02bc0c74292b1e8f395f90935d3174.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e95f1ac6ae6c0b67c9759c41f7791117.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9591790acda6cfada02926e2f0c7f3e2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20655342f9ace8b50a50f5eae6f37beb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1752474698cd5466dd180df0a00ba9c.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e62e90b62ea982a32315cc2c2d2ccae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(3)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26d9b6c86435e0ceff94d8ad1cd03737.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea69afba9cf603bb1625578e356dfbff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
您最近一年使用:0次
2019-12-05更新
|
222次组卷
|
3卷引用:模块一 专题5《等差数列与等比数列》单元检测篇 A基础卷 期末终极研习室(高二人教A版)
名校
8 . 已知数列
满足:
(其中
且
),
为数列
的前
项和.
(1)若
,求
的值;
(2)求数列
的通项公式
;
(3)当
时,数列
中是否存在三项构成等差数列,若存在,请求出此三项;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/84e4a6ba8df6cbe80b09da11a40df0bc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/78fbecca12ee62538020483fd55a2109.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9805d9c45198c7a249f317222f564999.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2251391555522aa9598f3c6587c011f7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
(2)求数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96abfe2da27a63e6affb19a0c80236d9.png)
(3)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac1c3ea872a20fdc1843cb5ffce8a554.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
您最近一年使用:0次
9 . 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
10 . 已知
是等差数列,
,
,
,
.
(1)求数列
的通项公式
;
(2)若
单调递增,且
的前
项和
,求
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d471926f7b27322d90c82b9ce21d3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e7c7debdf9905b44ff41d808a09d1ff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c03b32d326bdc88fce7c85a83880631b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c9b6e51986fe5d7a7265e0e93adcb4d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0a98aeca3e1e6600bbc02ce93fc9789.png)
(1)求数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d471926f7b27322d90c82b9ce21d3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96abfe2da27a63e6affb19a0c80236d9.png)
(2)若
![](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/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/74b32da53face45d9ddf1810cb2a5c29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
您最近一年使用:0次
2018-02-06更新
|
349次组卷
|
3卷引用:2019年5月21日 《每日一题》文数-数列的综合问题