1 . 已知函数
的图象是自原点出发的一条折线,当
(
)时,该图象是斜率为
的线段,其中常数
且
,数列
由
(
)定义.
(1)若
,求
,
;
(2)求
的表达式及
的解析式(不必求
的定义域);
(3)当
时,求
的定义域,并证明
的图象与
的图象没有横坐标大于1的公共点.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ed2be63fc4c8ab5ad34817459fe7e14.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d6961967d7e48061a9cbb14f597e73d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8212e307836cb33f16575e23f6b808e8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67ca5fd57c2c2fcc3c7a574fdd1467d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/406185f4ad8bcd99e23adc8d289088ed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e976c0663fa749ca749f99842d21ca03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b04a87082c00feca63aaea95a41f30d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d6961967d7e48061a9cbb14f597e73d.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcdb7a488910743dc5c63afb394b87e2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c814128ea2139e33db94ea590e7c2223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aec19b68e3add9d5bfcc6269a1855b87.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3282e5fde4ae53fcb1bb072a685304c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(3)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/731bdc8d2686a05f12a2ba8a7e3b01be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d77f5191798242b7b9b88a75e17e4425.png)
您最近一年使用:0次
2 . 已知数列
,
为其前
项的和,满足
.
(1)求数列
的通项公式;
(2)设数列
的前
项和为
,数列
的前
项和为
,求证:当
时
;
(3)(理)已知当
,且
时有
,其中
,求满足
的所有
的值.
(4)(文)若函数
的定义域为
,并且
,求证
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d471926f7b27322d90c82b9ce21d3d.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)求数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d471926f7b27322d90c82b9ce21d3d.png)
(2)设数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b7b78e4a03d4595f14be42054b61dfc6.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/5eded65284816fdf6bf335b0c2a78e6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e15526f7c892333030073b85fc3baee6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01b974113b04534e6855489aebd8354d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8af36b1b4e4ba0fa23904350640a9a81.png)
(3)(理)已知当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1933b7c3ace69622339353431c519b13.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/831608f09609c37f757f5bfcd01253f4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bece4ad62ab19c325ce9d3a21b57b063.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/608cda4002a7c87561a248866771dc82.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b74ae0faa6226d5c6422c7c2a436c97.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
(4)(文)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7bc25bb52563a7e84ee335a3a485898.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c91deceba9a972ea679d1a20beb67af5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f50845ac4e460b5ea04a656f5d82b7c8.png)
您最近一年使用:0次
3 . 已知
表示不小于
的最小整数,例如
.
(1)设
,
,若
,求实数
的取值范围;
(2)设
,
在区间![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0d45335f199dd5cf7e6a983a4110ead.png)
上的值域为
,集合
中元素的个数为
,求证:
;
(3)设
(
),
,若对于
,都有
,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9d60d72b51085ff7074db4052a867df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a28a3002b619eb45f43ddd7f80af1d62.png)
(1)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3649d731e13efb44ebcd880f5fe45491.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/838b7964f9253718937399d087b061ff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96f1ba0a1129741502600e47bf058c98.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f86cbe53a0d1c57ec6875c3bda0224e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/93e03ad0c315806342d6cd732a0b91a3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0d45335f199dd5cf7e6a983a4110ead.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/31eb761dbf1a5a1106dad1a25ce08a89.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ddad3d9fdb5e9951b6a1c31f9a72a71.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ddad3d9fdb5e9951b6a1c31f9a72a71.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96abfe2da27a63e6affb19a0c80236d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a940fb552e971bc2d56920ab1931704c.png)
(3)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c93086b41db64fef24e09e0ca5fac715.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63f04a01f96738e961084100ed412722.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/057f214e6d3bd8beb020c7a667d97811.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64e8f7120bfaf3ff3a6c5564ed826769.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
2020-02-02更新
|
786次组卷
|
2卷引用:上海市十三校2016届高三下学期3月联考(理)数学试题
名校
4 . 定义:若数列
满足,存在实数
,对任意
,都有
,则称数列
有上界,
是数列
的一个上界,已知定理:单调递增有上界的数列收敛(即极限存在).
(1)数列
是否存在上界?若存在,试求其所有上界中的最小值;若不存在,请说明理由;
(2)若非负数列
满足
,
(
),求证:1是非负数列
的一个上界,且数列
的极限存在,并求其极限;
(3)若正项递增数列
无上界,证明:存在
,当
时,恒有
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d471926f7b27322d90c82b9ce21d3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e97769855336d73371930df1f187875e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5612ce06759d0f77ca029d10083f7d1e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d471926f7b27322d90c82b9ce21d3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d471926f7b27322d90c82b9ce21d3d.png)
(1)数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83d9d536550d997c0e8a4ee5e0525f59.png)
(2)若非负数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d471926f7b27322d90c82b9ce21d3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1bae03ee4ac75dacfb026290e4207dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/add7db1d2bf6c4c50fb3d7f9297a7d83.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e97769855336d73371930df1f187875e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d471926f7b27322d90c82b9ce21d3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d471926f7b27322d90c82b9ce21d3d.png)
(3)若正项递增数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d471926f7b27322d90c82b9ce21d3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5d3ef092cafab4bedf93cf06f23a435.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/52eecd38954cd0ca3fb26328a39bb859.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96c7f98cf7b4b5511058825274297044.png)
您最近一年使用:0次
2019-08-16更新
|
884次组卷
|
6卷引用:上海市复旦大学附属中学2018-2019学年高三下学期期末考试数学试题
上海市复旦大学附属中学2018-2019学年高三下学期期末考试数学试题上海市复旦大学附中2018-2019学年高三下学期5月月考数学试题2019年上海市复旦附中高三5月模拟数学试题(已下线)第10讲 数学归纳法与数列综合应用-2(已下线)4.4数学归纳法的应用(第2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)第4章 数列(基础、典型、易错、压轴)-【满分全攻略】2022-2023学年高二数学下学期核心考点+重难点讲练与测试(沪教版2020选修一+选修二)
5 . 已知正项数列
满足![](https://staticzujuan.xkw.com/quesimg/Upload/formula/210c457ba87675015212f2e3afe4c56c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37f396e932e0e9fb033306fe0418254b.png)
证明:
(Ⅰ)![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87f7f9de977e3538466313482a2b336d.png)
(Ⅱ)
,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/210c457ba87675015212f2e3afe4c56c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37f396e932e0e9fb033306fe0418254b.png)
证明:
(Ⅰ)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87f7f9de977e3538466313482a2b336d.png)
(Ⅱ)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a5cfaac60b1f52c2fe0f57b7c206c2d.png)
您最近一年使用:0次
6 . 一青蛙从点
开始依次水平向右和竖直向上跳动,其落点坐标依次是![](https://staticzujuan.xkw.com/quesimg/Upload/formula/963001e3eb70f73ccca6e09dac87a8dc.png)
,(如图所示,
坐标以已知条件为准),
表示青蛙从点
到点
所经过的路程.
![](https://img.xkw.com/dksih/QBM/2016/8/8/1572968060739584/1572968067170304/STEM/19f3c5671eea463d8812e02e4ebb993c.png)
(1)若点
为抛物线
(
)准线上一点,点
均在该抛物线上,并且直线
经过该抛物线的焦点,证明
.
(2)若点
要么落在
所表示的曲线上,要么落在
所表示的曲线上,并且
,试写出
(不需证明);
(3)若点
要么落在
所表示的曲线上,要么落在
所表示的曲线上,并且
,求
的表达式.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61c75612d583fe1c593fddf0df3b07d0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/963001e3eb70f73ccca6e09dac87a8dc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2916cb0fd1273b181640bf9b86f5496a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61c75612d583fe1c593fddf0df3b07d0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7356ec98b600ece41f3a6b4bc26a7d59.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3cfeacc29e6a61c5b3b4e439c0a91df.png)
![](https://img.xkw.com/dksih/QBM/2016/8/8/1572968060739584/1572968067170304/STEM/19f3c5671eea463d8812e02e4ebb993c.png)
(1)若点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61c75612d583fe1c593fddf0df3b07d0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fc58c62444bf42a25289c45425a00f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c0aa23696b63c7d2d2950980a2c8cdb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00442d96d695db2c58bf1fb7165fca94.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00442d96d695db2c58bf1fb7165fca94.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5cfbb8b3c14e9617655321cab31acebc.png)
(2)若点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58a66b3f63ad767a5cd4a92e7d9d198b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d77f5191798242b7b9b88a75e17e4425.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/344ccbf79da6ad7e3709d6fa72efb756.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fe8845ac2aec1ed25f501e53b9b4e02e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56f4ee7d7a59449ecfccfa8ebe6588e7.png)
(3)若点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58a66b3f63ad767a5cd4a92e7d9d198b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a3627436bfaf5a3e38938acc762352e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d55d2201d4d9aa7846b17a249ac528b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0de7649e71f3893dffaa4c5d8d9c42d6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
您最近一年使用:0次
2016-12-01更新
|
930次组卷
|
4卷引用:2012届上海市七宝中学高三模拟考试理科数学
(已下线)2012届上海市七宝中学高三模拟考试理科数学2016届上海市七宝中学高三模拟理科数学试卷2016届上海市七宝中学高三模拟考试数学(理)试卷2016届上海市闵行区七宝中学高三下学期适应性考试(三模)(理)数学试题
2012·上海嘉定·一模
7 . 定义
的“倒平均数”为
.已知数列
前
项的“倒平均数”为
,记
.
(1)比较
与
的大小;
(2)设函数
,对(1)中的数列
,是否存在实数
,使得当
时,
对任意
恒成立?若存在,求出最大的实数
;若不存在,说明理由.
(3)设数列
满足
,且
,
且
,且
是周期为3的周期数列,设
为
前
项的“倒平均数”,求
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/949ffcf1e25ed4b0804babd03a8287d2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc63d0f256614d26a40bf784c400324a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29518f13a1ebc3fff8181c2d7cfba22f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95c02db8c962008a559794340e242982.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e11465a5f01c9cc7495e0acf24781102.png)
(1)比较
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e71fd3bd2adc4704035e114536bdb217.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07484865eeeb041620019c0cee8bf94b.png)
(2)设函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c7b6f62bea5937a59f88a8352d3e9eb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f4a426d8afd49a1ce1e8dddd2ea37498.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fac021ac918bf0c9ae1de6b74e538ae3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/659a7edb0401b6461283614edccb5cab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb8c29b297e3ec337c3139c2a1ebed1b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
(3)设数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2448cf72af76b810310e4cfb9818e2e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e80f94cf9d594dd6735e9c631a092afc.png)
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