1 . 设函数
,
,
,
.
(1)用函数单调性的定义证明:函数
在区间
上单调递减,在
上单调递增;
(2)若对任意满足
的实数
,都有
成立,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a166d2e7083bf6537270b6c7dc58e518.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94ab96b10e5d95acd8490e9627daa96c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/406185f4ad8bcd99e23adc8d289088ed.png)
(1)用函数单调性的定义证明:函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/caf87d9d48c3de0a5e9f1a70e51a0bef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aeb49dbba01c4ff5f686ffc8828351b2.png)
(2)若对任意满足
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/377a2333ff8c63cbdb20b882d6d5a7ec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b0fffbec1fe851795dfdd448bf0d165.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2712d6df9ff439d9f88729ca47e0ca4a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88e42953357fe79c16248ef4c79e6089.png)
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2019-02-03更新
|
742次组卷
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2卷引用:【市级联考】河北省保定市2018-2019学年高一第一学期期末调研考试数学试题
2 . 已知函数f(x)=
,其中c为常数,且函数f(x)的图象过原点.
(1)求c的值,并求证:f(
)+f(x)=1;
(2)判断函数f(x)在(-1,+∞)上的单调性,并证明.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/802f4adf7c33387219bf1cf370aca9db.png)
(1)求c的值,并求证:f(
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95fcfaf750395f9e5b843f017aab25d9.png)
(2)判断函数f(x)在(-1,+∞)上的单调性,并证明.
您最近一年使用:0次
3 . 已知函数
是定义在
上的不恒为零的函数,对于任意非零实数
满足
,且当
时,有
.
(Ⅰ)判断并证明
的奇偶性;
(Ⅱ)求证:函数
在
上为增函数,并求不等式
的解集.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c8bd00a1b1c012681aab8513b755cbc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632244ea6931507f8656e1cc3437d392.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea38ff7b3050c464f0270c4a146d2350.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fde64f4d3c38e43fbdee24eadc4b0dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/018857ec6e498113b3b12a730d9313da.png)
(Ⅰ)判断并证明
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
(Ⅱ)求证:函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8938db94f49dcbe0c383fba0241bb0da.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/984c0d730cbd5d1a09e4dda6d93ce729.png)
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4 . 对于正整数集合
,如果去掉其中任意一个元素
之后,剩余的所有元素组成的集合都能分为两个交集为空集的集合,且这两个集合的所有元素之和相等,就称集合
为“和谐集”.
(
)判断集合
是否是“和谐集”(不必写过程).
(
)请写出一个只含有
个元素的“和谐集”,并证明此集合为“和谐集”.
(
)当
时,集合
,求证:集合
不是“和谐集”.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c9a40d9006d3e9ef471da620a636b22.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38e053f60d2756b7d952f4fd3d547c12.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
(
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66b07a67307d5d4627efa688b30e5573.png)
(
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b06e95b57b7a81cd81d05557a11fa92.png)
(
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ca7d1107389675d32b56ec097464c14.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e45cf86650443d1b86c79b1e3edc7e5c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8ec5e58ce0ca1d903b509043df31a6e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
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2018-07-02更新
|
1559次组卷
|
8卷引用:【全国百强校】北京东城北京二中2017-2018学年高二上学期期中考试数学(理)试题
【全国百强校】北京东城北京二中2017-2018学年高二上学期期中考试数学(理)试题人教A版(2019) 必修第一册 突围者 第一章 易错疑难集训(一)(已下线)1.2集合间的基本关系-2021-2022学年高一数学同步辅导讲义与检测(人教A版2019必修第一册)北京市西城区北京师范大学第二附属中学2021-2022学年高一上学期期中数学试题北京市大峪中学2022-2023学年高一上学期期中考试数学试题(已下线)高一上学期期中【压轴60题考点专练】(必修一前三章)-2022-2023学年高一数学考试满分全攻略(人教A版2019必修第一册)北京市人大附中北京经济技术开发区学校2023-2024学年高一上学期期中考试数学试题(已下线)期中真题必刷压轴60题(15个考点专练)-【满分全攻略】(人教A版2019必修第一册)
5 . 已知函数
.
(1)求证:
是奇函数;
(2)判断
的单调性,并证明;
(3)已知关于
的不等式
恒成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8dd16a771edbedeaca1d28d25a25089.png)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)判断
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(3)已知关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5aa6024d1514f7598e197ad3d7f8d720.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
您最近一年使用:0次
解题方法
6 . 设函数
定义在
上,对于任意实数
,
,恒有
,且当
时,
.
(1)求
的值.
(2)求证:对任意的
,有
.
(3)证明:
在
上是减函数.
(4)设集合
,
,且
,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a43b2faa4f81f32d94612dce724e772b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ac82501b461d044f78e7ae5b86cd3c3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5456d544e2f8d22c08f3ccee002dad4a.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f54b6a060d6c51a328341df76013bd89.png)
(2)求证:对任意的
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24a57996290794e082b21d8f1dfc322a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/018857ec6e498113b3b12a730d9313da.png)
(3)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a43b2faa4f81f32d94612dce724e772b.png)
(4)设集合
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34f4d43634c9b34cf3a7aa58ef9f68a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0061c00ac16b749237aebb6c55a4257.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dea9a4259cca10c1f5af28e621ebafd6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
名校
7 . 已知奇函数
.
(1)试确定
的值;
(2)判断
的单调性,并证明;
(3)若方程
在
上有解,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18ee4a52efc303a9e20f8dc2a2fcbda4.png)
(1)试确定
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)判断
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(3)若方程
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9c0d827ef8598ba6b70b34b2bdcd1e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad2edd8edcb21bd41584daf9bb95a5c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5631f3882775ce7c67fc2408b750c503.png)
您最近一年使用:0次
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解题方法
8 . 已知函数
.若对任意实数
,都有
,且当
恒成立.
(1)判定函数
的奇偶性,并证明你的结论;
(2)求证:函数
在
上是增函数;
(3)解关于
的不等式:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/582dd334d519999555ed98e60dbd6567.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f63cb59d5f3eb16beb379672fde5f170.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab0c6f119137e1b6760d55956d99d963.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9bed35af28313885be08105433a4a7f1.png)
(1)判定函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)求证:函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ead3fdcb8fe8f5eb3dbe7d96cabc28b.png)
(3)解关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd663889c7132153570e9b388f2938a7.png)
您最近一年使用:0次
2018-01-06更新
|
185次组卷
|
3卷引用:安徽省六安市舒城中学2017-2018学年高一上学期第一次月考数学试题
安徽省六安市舒城中学2017-2018学年高一上学期第一次月考数学试题(已下线)黄金30题系列 高一年级数学(必修一+必修二) 大题易丢分河南省郑州外国语学校2020-2021学年高一上学期第一次月考数学试题
9 . 已知函数
.
(1)证明:函数
是偶函数;
(2)记
,
,求
的值;
(3)若实数
满足
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4125cf282c11fd6bbb290cf1e91aefad.png)
(1)证明:函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d479a86a1711709b2d100fe4daf3e7cf.png)
(2)记
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2015da5d06690edcf0cfc44bde61bea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a863eb48557d4ea0b9cb6ae4258e8bfe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e6ddeca9c6d150302f1547abffa5de5.png)
(3)若实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/760effa3c34aefb5d6bbd0e7ca0d48fd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1650f39d991a96ff8113428155aa7437.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/454dc9e522e7c1a258a1d7e733306865.png)
您最近一年使用:0次
解题方法
10 . 已知函数
的定义域为
,值域为
,且对任意
、
,都有
,
.
(1)求
的值,并证明
为奇函数;
(2)若
时,
,且
,判断
的单调性(不要求证明),并利用判断结果解不等式
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a43b2faa4f81f32d94612dce724e772b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d562dc22dfb3b81d0c3f88b54d063c2f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3276b5e12396fc4753eb3f8254f9fa68.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8da9144b3862e0742ad23181df7833f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/98bcf5aa44b81b3ebbfcb08bd4d21379.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e38fffbc7ab9882480f4faa72390e23.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/544f91d4fb22c571db9f8481b72a0419.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d752d8db8a05b3ec7312f6ac8b64a07.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3359f013aac2768a0c54cae1a95a158c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25e7ff7777bcb4f8e80ebdc095cd9741.png)
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2017-10-17更新
|
507次组卷
|
2卷引用:山西省河津三中2018届高三一轮复习阶段性测评文数试题