名校
1 . 已知函数
.
(1)若
,求
的单调区间;
(2)若
时
恒成立,求实数a的取值范围.
(3)定义函数
,对于数列
,若
,则称
为函数
的“生成数列”,
为函数
的一个“源数列”.
①已知
为函数
的“源数列”,求证:对任意正整数
,均有
;
②已知
为函数
的“生成数列”,
为函数
的“源数列”,
与
的公共项按从小到大的顺序构成数列
,试问在数列
中是否存在连续三项构成等比数列?请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e3374eaf3f06eeb1ac4272d402cfa1b.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/200f24e682c93e02a87f3f9d57dc5d40.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bcac1e85463a3177f487d896b3d1d24c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6acb0f1ac694dd177e99fc385f23318.png)
(3)定义函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0914c295f572c98dd043d4f84268934.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b9599b8c0f6a10d15f408ad651b35c8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
①已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72878dfe2c7a76d76287194ac4bdf4ca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/729b4033af5b0c9c4889406d2c8294f7.png)
②已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62a386e4d3f92631ed64ca3e2f5f4725.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](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/57ef6d44448092ebdb9e4a49d866a749.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57ef6d44448092ebdb9e4a49d866a749.png)
您最近一年使用:0次
2023-12-25更新
|
719次组卷
|
4卷引用:上海市静安区回民中学2024届高三上学期12月阶段性测试数学试题
上海市静安区回民中学2024届高三上学期12月阶段性测试数学试题上海市浦东复旦附中分校2023-2024学年高三下学期3月月考数学试题(已下线)第五章 导数及其应用(单元重点综合测试)-2023-2024学年高二数学单元速记·巧练(沪教版2020选择性必修第二册)湖南省邵阳市第二中学2024届高三下学期入学测试数学试题
解题方法
2 . 已知平面上有
个点
,
,
,
,
,
,
,
,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/40bdda8ec472fb7f07c7213bf6f063b1.png)
且
,记
的坐标为
,将
,
,
依次顺时针排列,求
=________
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3468a665ac713ab7b400c672f19650a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a18722354086c42e62334983fc50eb6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd3b9e816b14051f785aa5aae72b8eed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/daa5e9bd516f6282483b92cfe6074623.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3cfeacc29e6a61c5b3b4e439c0a91df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/039af66355ed85ff4c204931b882b694.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c97d15ede1ffecd6035c4e196e557f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36f18f1cec532d6835b69b99704df0d7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/688d97dccaf3c1259e2f1f8fd525bedc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/40bdda8ec472fb7f07c7213bf6f063b1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd43fd553146f09a4381dcdbf0458cb8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ceec3ca529adb8c49f9e3db40256e53b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3cfeacc29e6a61c5b3b4e439c0a91df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c2b289b20ecde54bf91c3a0bd5869e8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3cfeacc29e6a61c5b3b4e439c0a91df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/039af66355ed85ff4c204931b882b694.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c97d15ede1ffecd6035c4e196e557f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85462bd19666677a46625c60deadd979.png)
您最近一年使用:0次
2023-12-16更新
|
303次组卷
|
5卷引用:上海市普陀区长征中学2024届高三上学期10月月考数学试题
上海市普陀区长征中学2024届高三上学期10月月考数学试题上海市嘉定区2024届高三上学期质量调研数学试题(已下线)第4章 数列(压轴题专练)-2023-2024学年高二数学单元速记·巧练(沪教版2020选择性必修第一册)(已下线)上海市高二下学期期末真题必刷04(压轴题)--高二期末考点大串讲(沪教版2020选修)(已下线)第16题 数列递推求通项(高三二轮每日一题)
名校
解题方法
3 . 我国古代数学典籍《九章算术》第七章“盈不足”中有一道两鼠穿墙问题:“今有垣厚五尺,两鼠对穿,大鼠日一尺,小鼠日一尺,大鼠日自倍,小鼠日自半,问何日相逢?”描述的问题是:有五尺厚的墙,两只老鼠从墙的两边相对分别打洞穿墙,大、小鼠第一天都进一尺,以后每天,大鼠加倍,小鼠减半,则( )天后两鼠相遇.
A.1 | B.2 | C.3 | D.4 |
您最近一年使用:0次
2023-12-08更新
|
532次组卷
|
9卷引用:上海市复旦大学附属中学2023-2024学年高二上学期阶段性学业水平检测2(暨拓展考试6)数学试题
上海市复旦大学附属中学2023-2024学年高二上学期阶段性学业水平检测2(暨拓展考试6)数学试题(已下线)考点15 数列中的数学文化 2024届高考数学考点总动员(已下线)专题07 等比数列及其前n项和6种常见考法归类(2)(已下线)5.4数列的应用(分层练习,8大题型)-2023-2024学年高二数学同步精品课堂(人教B版2019选择性必修第三册)(已下线)5.3.2等比数列的前n项和(分层练习,5大题型)-2023-2024学年高二数学同步精品课堂(人教B版2019选择性必修第三册)(已下线)第4.3.2讲 等比数列前n项和的性质及应用(第2课时)-2023-2024学年新高二数学同步精讲精练宝典(人教A版2019选修第二、三册)(已下线)专题34 等比数列及其前n项和6种常见考法归类- 【考点通关】2023-2024学年高二数学高频考点与解题策略(人教A版2019选择性必修第二册)(已下线)4.3.2 等比数列的前n项和公式(6大题型)精讲-2023-2024学年高二数学题型分类归纳讲与练(人教A版2019选择性必修第二册) (已下线)专题06 等差数列与等比数列(2)--高二期末考点大串讲(人教B版2019选择性必修第二册)
名校
解题方法
4 . 已知数列
是公差为正的等差数列,其前
项和为
;各项都为正数的等比数列
满足
,
.
(1)求数列
,
的通项公式;
(2)记
,求数列
的前
项和
.
![](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/8ce817f902302ebdd5a599e43df77614.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5fce83115a50f99e08e9a2db7267aeed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6050b9b620e2970b6022583a111f7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7b3770d8799798a432f85aab3b0dbda.png)
(1)求数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d471926f7b27322d90c82b9ce21d3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5fce83115a50f99e08e9a2db7267aeed.png)
(2)记
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/924d34bdcf394bef34ef2587e96630f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38ef4c4439b36c2847b0056a116d56d4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1ae9a3b0b7aeb1545b65d91aa371b3c.png)
您最近一年使用:0次
2023-11-13更新
|
862次组卷
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2卷引用:上海市宝山中学2023-2024学年高二下学期3月考数学试卷
5 . 已知
是各项均为正实数的数列
的前n项和,
,若
,则实数m的取值范围是____________ .
![](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/55cfe3500a7c74bbe92c6c77a8ce3ac7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd3cb49234c927b2564c980c2bccb4f2.png)
您最近一年使用:0次
2024-03-31更新
|
460次组卷
|
7卷引用:上海市宝山区吴淞中学2024届高三下学期3月月考数学试题
上海市宝山区吴淞中学2024届高三下学期3月月考数学试题江西省南昌市江西师大附中2023-2024学年高二下学期3月月考数学试题四川省成都市玉林中学2023-2024学年高二下学期3月诊断性评价数学试题上海市嘉定区上海师范大学附属嘉定高级中学2023学年高二下学期期中考试数学试卷1号卷·A10联盟2022届全国高考第一轮总复习试卷数学(文科)试题(十一)(已下线)专题8 数列与不等式恒成立问题(一题多解)(已下线)高二数学期末模拟试卷02【好题汇编】-备战2023-2024学年高二数学下学期期末真题分类汇编(北师大版2019选择性必修第二册)
6 . 已知对任意正整数对
,定义函数
如下:
,
,
,则下列正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19baf5ac40a3fc28c20e0307ada63447.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/821c2a7f7f547b4de70e9f5b14617c0b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19e94265f8f7a0f1ca93512e25526dfa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0af9d026ef6b471ace3ac6308c422f4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/025107fcef5903df1c886118b596f037.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
7 . 若数列
满足
(
为正整数,
为常数),则称数列
为等方差数列,
为公方差.
(1)已知数列
,
的通项公式分别为:
,
,判断上述两个数列是否为等方差数列,并说明理由;
(2)若数列
是首项为1,公方差为2的等方差数列,在(1)的条件下,在
与
之间依次插入数列
中的
项构成新数列
:
,
,
,
,
,
,
,
,
,
,……,求数列
中前30项的和
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/595955aa3a2670abcd60c78a5086f2fe.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/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
(1)已知数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e976c0663fa749ca749f99842d21ca03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1165edc23b5782b5942ef7e79130bb94.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19814dff8cdcec0e1a9eab38f4f16e62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f803d745499bb0ea7cd963cb2f4c871e.png)
(2)若数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4741eb4c177d75ca74fe2d36e52ecbc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1cf52946ef832dd2fa7a82dcd6d1bcc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/362832fa3d3c13c1eafd565349d66dce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57ef6d44448092ebdb9e4a49d866a749.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54015ff5b49e3283901da1291b6b921d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f23cabc65fcefdd191930fbfa89cf125.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46f6872ffb1934339c53c2c2282d5889.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a8553a873958eb9d14c89c59ab5c317.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67a2fc7063bcdce2bee4cb0f4d748d72.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9314bd1d7a6e070f4f2428f9a321804e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c992eaf396ef52255403bfca119e032c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9839f07d78de3e6d161e4e1eff25b9cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac9a8ceb6e6214002bbdbb71e7828110.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f81ee8fc80a880ccceac24aa739fac39.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57ef6d44448092ebdb9e4a49d866a749.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f550f4135c46fbfb0c001e662cd8ff6.png)
您最近一年使用:0次
8 . 已知数列
满足:
,
.
(1)求证
是等比数列,并求数列
的通项公式;
(2)求使不等式
成立的所有正整数m,n的值.
![](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/79d0544c1308b210630a8a638560e66f.png)
(1)求证
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4599c3dcf05d964c4e67e2437e718580.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
(2)求使不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09a312229e8ac42ed682213bf056bb99.png)
您最近一年使用:0次
名校
解题方法
9 . 已知数列
的前n项和为
,且对任意正整数n都有
.
(1)求数列
的通项公式;
(2)若
(n为正整数),求数列
的前n项和
;
(3)若
(n为正整数),且不等式
对任意正整数n都成立,求实数t的取值范围.
![](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/45c75abdabd4387bba5abfd7c620712f.png)
(1)求数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/320dc69d2a8b65b2a9dfda21be4f4b79.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1ae9a3b0b7aeb1545b65d91aa371b3c.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b23a411cdce71ea3ef5da8b87bd53400.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23ae4e70bd42078bb52b178cd60c997f.png)
您最近一年使用:0次
名校
解题方法
10 . 已知公差为正数的等差数列满足
成等比数列.
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fbd8e16b5cce392a12326fa2f3ee9acd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
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3卷引用:上海市金山中学2023-2024学年高二下学期3月月考数学试卷
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