名校
1 . 已知数列
前
项和为
.
(1)求数列
的通项公式;
(2)求数列
的前
项和.
![](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/5886e031a95a8d52c9306e6b1c518abc.png)
(1)求数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
(2)求数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4844ada5b5eb39d704345bb4e6080d99.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
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|
1910次组卷
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名校
2 . 已知等比数列
满足
,数列
满足
.
(1)求数列
,
的通项公式;
(2)令
,求数列
的前
项和
;
(3)若
,求对所有的正整数
都有
成立的
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8e260e01a81a1fac886d0897ab4fd9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23a27f2da58600999e5d58fdbecc62eb.png)
(1)求数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
(2)令
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25b67af73f586837594ab0db4b89baed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57ef6d44448092ebdb9e4a49d866a749.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3be362dec96173f246ff747264007817.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d6fbdd4ba14cb5192136175f4a13ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
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2017-08-21更新
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4卷引用:江西省宜春市奉新县第一中学2019-2020学年高一下学期第二次月考数学试题
3 . 已知
是数列
的前
项和,且满足![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08e7d0c282cd14c00ec4e3ff544b2b45.png)
,等差数列
的前
项和为
,且
,
.
(1)求数列
与
的通项公式;
(2)若数列
的通项公式为
,问是否存在互不相等的正整数
,
,
使得
,
,
成等差数列,且
,
,
成等比数列?若存在,求出
,
,
;若不存在,说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.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/08e7d0c282cd14c00ec4e3ff544b2b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e5e07bf129b073f37b553fbca100172.png)
![](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/f1ae9a3b0b7aeb1545b65d91aa371b3c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/819bc93026ea0acead1b8f6bad998f72.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08b6f02731cfe96d404a446d0b8bccc4.png)
(1)求数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d471926f7b27322d90c82b9ce21d3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5fce83115a50f99e08e9a2db7267aeed.png)
(2)若数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38ef4c4439b36c2847b0056a116d56d4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac07953530e3c248b3438fb200fb1661.png)
![](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/11bc05f41215f9894e11d1df0465751a.png)
![](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/11bc05f41215f9894e11d1df0465751a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/829442c6473c94fde041595bc18530d7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9e5dfcc28321b563a8012ec2899c502.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1eed56ce9d863bba9b5ea05aebf236b3.png)
![](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/11bc05f41215f9894e11d1df0465751a.png)
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2017-04-08更新
|
1286次组卷
|
2卷引用:2016-2017学年江西省南昌市重点学校高一4月检测数学试卷
名校
4 . 已知数列
的前n项和为
,且
,递增的等比数列
满足:
.
(1)求数列
的通项公式;
(2)若
,求数列
的前n项和
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4be2164a2c67d6163faee87a10942bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e10c82c68f58217131710c900f2f0242.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a89d1f32c1605cfdb8e8855051b9f6ec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f4cdb4500a520658ae624aa6ffb06fe.png)
(1)求数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eefe330a6f08b767a2f6b15662ccf7c8.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/100b9296ed3da3310b2010c1f1ae65cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c88a7ef007c78a93e33bd77c4396626.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1ae9a3b0b7aeb1545b65d91aa371b3c.png)
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2016-12-03更新
|
3021次组卷
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6卷引用:2014-2015学年江西省上饶市横峰中学等四校高一6月考理科数学试卷
2014-2015学年江西省上饶市横峰中学等四校高一6月考理科数学试卷2014-2015学年江西省赣州市高一下学期期末考试数学试卷陕西省榆林市绥德中学2019-2020学年高二上学期第一次阶段性考试数学试题福建省厦门市双十中学2019-2020学年高一(下)期中数学试题甘肃省酒泉市敦煌中学2022-2023学年高三第二次诊断考试数学(文科)试题(已下线)模块一 专题5 等差数列与等比数列 期末终极研习室(2023-2024学年第一学期)高二人教A版
14-15高三上·江西南昌·阶段练习
名校
5 . 已知等差数列
的前
项和为
,并且
,
,数列
满足:
,
,记数列
的前
项和为
.
(1)求数列
的通项公式
及前
项和公式
;
(2)求数列
的通项公式
及前
项和公式
;
(3)记集合
,若
的子集个数为16,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d737c1047a14cee12a6671383e244fa5.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/9c9b6e51986fe5d7a7265e0e93adcb4d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fca2cc2768794136c1e4da47d2f0873e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a89d1f32c1605cfdb8e8855051b9f6ec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a24e6bcf49b8e45531a2d4e4c70c181.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32e7ae6735ffcaf5bd33df7e4eb7aa5a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a89d1f32c1605cfdb8e8855051b9f6ec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1ae9a3b0b7aeb1545b65d91aa371b3c.png)
(1)求数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d737c1047a14cee12a6671383e244fa5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96abfe2da27a63e6affb19a0c80236d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
(2)求数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a89d1f32c1605cfdb8e8855051b9f6ec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/686ece75006ad358f23314dc8a246e11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1ae9a3b0b7aeb1545b65d91aa371b3c.png)
(3)记集合
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7cfd27f13ca95da3107d4d87aaf4e684.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5fffd330dd6b9241659d790bd2a7fb2.png)
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2016-12-03更新
|
1174次组卷
|
6卷引用:2015届江西省南昌二中高三上学期第四次考试理科数学试卷
11-12高三·江西吉安·阶段练习
名校
6 . 已知各项均为整数的数列
满足
,
,前6项依次成等差数列, 从第5项起依次成等比数列.
(1)求数列
的通项公式;
(2)求出所有的正整数m ,使得
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f3af4204cbd59c0bc15f5d83b240a7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/674b8ec980dee2fcc9f6d2682cb8e358.png)
(1)求数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
(2)求出所有的正整数m ,使得
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/088d98f71f331d45f7543a5dc881df6b.png)
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2016-12-01更新
|
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12卷引用:2012届江西省吉水中学高三周考理科数学
(已下线)2012届江西省吉水中学高三周考理科数学2015届江苏省盐城市时杨中学高三12月月考调研数学试卷江苏省南京市金陵中学2018届高三上学期10月考数学试卷湖南师大附中2020-2021学年高三上学期10月第二次月考数学试题湖南师大附中2021届高三(上)月考数学试题(二)湖南师范大学附属中学2020-2021学年高三上学期第二次月考数学试题湖北省荆州市石首一中2020-2021学年高三上学期11月月考数学试题福建省龙岩市上杭县才溪中学2023届高三上学期11月检测数学试题江苏省南通市如东县2022-2023学年高二上学期12月段考数学试题江苏省南京航空航天大学苏州附属中学2023-2024学年高二上学期10月月考数学试题2015届江苏省宿迁市剑桥国际学校高三上学期期中考试数学试卷(已下线)专题19数列求和、数列的综合应用-2022年高三毕业班数学常考点归纳与变式演练(文理通用)
10-11高三·江西南昌·阶段练习
7 . 无穷数列
的前n项和
,并且
.
(1)求
的值;
(2)求
的通项公式;
(3)作函数
,如果
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7a99badd778a7844bd02f5cbb137856.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42508dd2bbf426186f64c45c9696626d.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
(3)作函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef9a8c38c803660c07371b3b794a645d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd651fc0b78659cc40be70754db70b58.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18276fedc0e03abadbcec011c839f38e.png)
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10-11高三·江西新余·阶段练习
名校
解题方法
8 . 已知正项数列
满足:
时,
.
(1)求数列
的通项公式;
(2)设
,数列
的前n项和为
,是否存在正整数m,使得对任意的
,
恒成立?若存在,求出所有的正整数m;若不存在,说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0dff324ed5585cc045d1b9fe5e96580.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc1907a914252d133209a982d60a6637.png)
(1)求数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f83430c694f54c399069add48d1af05.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1933b7c3ace69622339353431c519b13.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f7eaeb8d726023f0ea11e9bb426a82dd.png)
您最近一年使用:0次
2016-11-30更新
|
1751次组卷
|
4卷引用:2011届江西省新余四中高三第二次联考数学文卷
(已下线)2011届江西省新余四中高三第二次联考数学文卷2020届湖南省长沙市长郡中学高三月考(六)数学(文)试题河北省衡水市枣强中学2020届高三下学期2月调研数学(文)试题湖北省襄阳市第一中学2022-2023学年高二上学期期末数学试题