1 . 已知函数
是定义域为
的奇函数,且当
时,
,其中
是常数.
(1)求
的解析式;
(2)求实数
的值,使得函数
,
的最小值为
;
(3)已知函数
满足:对任何不小于
的实数
,都有
,其中
为不小于
的正整数常数,求证:
.
![](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/db2b74d89854116e411c089d053df053.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05bcfb969d5ae397a9cf21d864607acc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b77ddb57bfafb8097e4dddbb31ee406e.png)
(2)求实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e20534ab483d2d83afe75bcab1de6dd8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f7dbb416ec1ff1984a724a4f48bf692.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56d266a04f3dc7483eddbc26c5e487db.png)
(3)已知函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0975e2e61e9e13075ef3931e252e12e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cfb4217f3b14ce9decf8955d7c6de71a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b794e06d5ddd1d0c71e8d6bda3c393fa.png)
您最近一年使用:0次
名校
解题方法
2 . 设集合
表示具有下列性质的函数
的集合:①
的定义域为
;②对任意
,都有![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2716abdad63441eba9523f2027ae546b.png)
(1)若函数
,证明
是奇函数;并当
,
,求
,
的值;
(2)设函数
(a为常数)是奇函数,判断
是否属于
,并说明理由;
(3)在(2)的条件下,若
,讨论函数
的零点个数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0cb9ad1e34877b0db02d0219332b0f7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/455ba3d3e46977fcbe5b71f8bb9df4be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8c75a15990fdcf1de0a9ac9f475e3c92.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2716abdad63441eba9523f2027ae546b.png)
(1)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f08e00c2ceb913bf6c62228be24450c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/220430600b71ba8057b7f81d277cc309.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7876ccb520940c4cb07b1143bd4cd8d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3f81f2a0196b06fc56a7e8a6463d179.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38fcec7af3520884b173b29bda6c657a.png)
(2)设函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a057be5fc41ae243adce559b0c56e086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0cb9ad1e34877b0db02d0219332b0f7b.png)
(3)在(2)的条件下,若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d622efc4d46c75d974bec8748e81f59e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f9262b188a915f2064f5a730f81688ab.png)
您最近一年使用:0次
3 . 设
我们可以证明对数的运算性质如下:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c042897ef7240e0f6039c79b4afe8176.png)
.我们将
式称为证明的“关键步骤”.则证明
(其中
)的“关键步骤”为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a08b88c327b7525f54a0c07c4cdb5f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c042897ef7240e0f6039c79b4afe8176.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a5b710748a6c2604da45ba1080aaaee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c512c047783c07da1d4f4455a4033ef5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c20bf29391da7eccd37b59c1898c158a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d53ee0d97877274c321928c897135c6.png)
您最近一年使用:0次
2019-12-31更新
|
302次组卷
|
3卷引用:上海市静安区2019-2020学年高三上学期期末数学试题
上海市静安区2019-2020学年高三上学期期末数学试题2020届上海市静安区高三一模(期末)数学试题(已下线)4.2 对数(重点练)-2020-2021学年高一数学十分钟同步课堂专练(苏教版2019必修第一册)
名校
4 . 对于定义在
上的函数
,若函数
满足:①在区间
上单调递减,②存在常数
,使其值域为
,则称函数
是函数
的“渐近函数”.
(1)判断函数
是不是函数
的“渐近函数”,说明理由;
(2)求证:函数
不是函数
的“渐近函数”;
(3)若函数
,
,求证:当且仅当
时,
是
的“渐近函数”.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b029e85e686623cdef977b2cb1f207a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00be862d30a8c6bbd59f96fdffee7413.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b029e85e686623cdef977b2cb1f207a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/040e5d14f45a054a7835c9db471c9db9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f3e228067dbbd535c24d7555d0bbfa19.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(1)判断函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ffa1c68cebf2203d277f61cfdbacf175.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0bbad4992b39aaaac00f95a1d26c2d78.png)
(2)求证:函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99562beeb4f995300add1887759932ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9beb0c20210186411051d681225df04b.png)
(3)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc439cc7034b8ba8b1e8e03bacf8a90e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdef85d50578d84a92ffcc754f7afddb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e258ab9e600435b37465092243d99f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
您最近一年使用:0次
2019-11-14更新
|
403次组卷
|
3卷引用:上海市闵行区七宝中学2019-2020学年高一上学期12月月考数学试题
名校
5 . 已知函数
.
(1)判断函数
的奇偶性,并说明理由;
(2)若对于任意的
恒成立,求满足条件的实数m的最小值M .
(3)对于(2)中的M,正数a,b满足
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f7d9ad61f1c5ee9bfcd291d72873c4b.png)
(1)判断函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
(2)若对于任意的
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d0c8998363b0ceab5bfe881acfd782d6.png)
(3)对于(2)中的M,正数a,b满足
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e8762c14ba07710784f3a0d554d38ae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/71b0e403c5f00d0357d3fa30d6c2717c.png)
您最近一年使用:0次
2019-12-10更新
|
367次组卷
|
4卷引用:上海市上海师范大学附属中学2019-2020学年高一上学期期中数学试题
名校
6 . 我们把定义在
上,且满足
(其中常数
、
满足
,
,
)的函数叫做似周期函数.
(1)若某个似周期函数
满足
且图象关于直线
对称,求证:函数
是偶函数;
(2)当
,
时,某个似周期函数在
时的解析式为
,求函数
,
,
的解析式;
(3)对于(2)中的函数
,若对任意
,都有
,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20bd250f12f1e0101db05917a3959db0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b68df477b3ee45ac0f725db00d465a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c400a615a16a1662de98dfb4e49d58d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20849c00c47cbdc43f18d53341b6c4e5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7eecacbdc5c2a7e7ac00daea8c448098.png)
(1)若某个似周期函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8be895daebbdce508982977a77df16f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b384412acba251d87902ab928902f16.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8be895daebbdce508982977a77df16f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e258ab9e600435b37465092243d99f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05486718d0f498abca5c2c21912bb26d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e78e89bf3b88c415496c232017f33196.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a9bf26fc3871e617d8d79e273ee7004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f02d5c8eec434a3f90348d770a2e2b2.png)
(3)对于(2)中的函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b9849dc6798e2c2ec12730b92117e77.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63181f6f8fb4904131e9f213f42960a7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
7 . 设常数
,若函数
存在反函数
.
(1)求证:
,并求出反函数
;
(2)若关于
的不等式
对一切
恒成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22dd8b3dc4c609bab82d356a5cc2208d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e762e0cc35266e2b936160505a08e7d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/14a2a1822ac7392b61b2c0fffc1fbc05.png)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/14a2a1822ac7392b61b2c0fffc1fbc05.png)
(2)若关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/291fcf04366f7d57e44b558f9b666745.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3af98533fbc91ae52c1eeaf0592a86f8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
2019-08-16更新
|
276次组卷
|
5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22讲 反函数-【A+课堂】2021-2022学年高一数学同步精讲精练(沪教版2020必修第一册)(已下线)5.4反函数(作业)(夯实基础+能力提升)-【教材配套课件+作业】2022-2023学年高一数学精品教学课件(沪教版2020必修第一册)
名校
8 . 若存在实数
使得
则称
是区间
的
一内点.
(1)求证:
的充要条件是存在
使得
是区间
的
一内点;
(2)若实数
满足:
求证:存在
,使得
是区间
的
一内点;
(3)给定实数
,若对于任意区间
,
是区间的
一内点,
是区间的
一内点,且不等式
和不等式
对于任意
都恒成立,求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2d2919e5bd26b5e9be672a3ff7604cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/220070d9bef1244a81af87a13885d817.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1add6ea18092e4db74ff941591d8950.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85b7e150af2052a1664cde963273d905.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96dfaeb8281858eafc652223d9abecab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/30277e0be448b4955903e81e8795e45d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
(2)若实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/663a61ad241d5d874c9a9362f0ee917c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a727f8c2f098bc3bce6719a9616c013e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2d2919e5bd26b5e9be672a3ff7604cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2f89a8b5cf6996a6455375e405bfb9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6fe5f1f33b2085760378b8abc0f1a582.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
(3)给定实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/958ca60e8f470ce1b747c7e6a8c5cc69.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1add6ea18092e4db74ff941591d8950.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c814128ea2139e33db94ea590e7c2223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/75b5dc876d7dcd3c971b36d26668b1e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aec19b68e3add9d5bfcc6269a1855b87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/28643dbf049ac0eab51b51f6c1c64646.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0cd882dced6d048a704bfc678b8e7791.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9cb0aa8c434bdadb3725591e5e49099d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83eb829e3338a9e4be598124855685e8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7789a85ea4968343b0d94ed2fe01b535.png)
您最近一年使用:0次
2019-10-23更新
|
1273次组卷
|
4卷引用:上海市南模中学2019-2020学年高三上学期10月月考数学试题
名校
9 . 若集合
具有以下性质:(1)
且
;(2)若
,
,则
,且当
时,
,则称集合
为“闭集”.
(1)试判断集合
是否为“闭集”,请说明理由;
(2)设集合
是“闭集”,求证:若
,
,则
;
(3)若集合
是一个“闭集”,试判断命题“若
,
,则
”的真假,并说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a2faf3937abcb6a59071c17bc6bb10f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/35a2410ce34b36954ed4923e600d42f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e63c91626ffa91e590925e6f206c3c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c46de01c5104b9112a688df37eadb000.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38f0e9c04402a0ffdaa25c3e3c82c7dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4cd77104cc745d1e0e262122da34482d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
(1)试判断集合
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a05551b1d4b65f27a932c33ddb1cb6ac.png)
(2)设集合
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e63c91626ffa91e590925e6f206c3c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/957d41dbe52b49c3a7339e3519a3fe84.png)
(3)若集合
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7580ce638933a1c81da5e2e1b656c77a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8f06a4a9deb51418c20e7e7376cc807.png)
您最近一年使用:0次
名校
10 . 已知
是实常数,
,
.
(1)当
时,判断函数
在区间
上的单调性,并说明理由;
(2)写出一个
的值,使得
在区间
上有至少两个不同的解,并严格证明你的结论.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f8b34ad27614c3a6a4bfff5483f5c772.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e258ab9e600435b37465092243d99f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aeb49dbba01c4ff5f686ffc8828351b2.png)
(2)写出一个
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3047d4ab078dafc06c047bcbf0a6ffaf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8938db94f49dcbe0c383fba0241bb0da.png)
您最近一年使用:0次
2019-11-11更新
|
354次组卷
|
3卷引用:2019年上海市控江中学高三三模数学试题