1 . 已知函数
,其中
.
(1)当
时,求证:函数
是偶函数;
(2)已知
,函数
的反函数为
,若函数
在区间
上的最小值为
,求函数
在区间
上的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46de5284a8d6ccf8abef40c9003613b4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1e69392d21261afd8e5e5f096634669.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37e9222ffc26c0e6bfbf252ab5d8a520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32d6b59f4796a45963dea76b89c72bea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c9f7295ceeae71c9db819fa21b4d325.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6c1756b564bf1d998d8179637011c88.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00a67558257699bd7125c174190b3d18.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6c1756b564bf1d998d8179637011c88.png)
您最近一年使用:0次
2020-02-09更新
|
319次组卷
|
2卷引用:2016届上海市杨浦区高三4月质量调研(二模)(文)数学试题
解题方法
2 . 设函数
的定义域为
,若对于任意
、
,当
时,恒有
,则称点
为函数
图象的对称中心.研究函数
的某一个对称中心,并利用对称中心的上述定义,可得到
的值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c814128ea2139e33db94ea590e7c2223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c28e384ba050b238e11f7c74d3002aab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/032eab63799f0e127147906aaab8ce74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58b5825c3e9dfe9c79c082d5b3425fcd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4562f3225c98cf5cb11b47d98c9cc9c3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a71de19e177d616759dfae1991f2d739.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e9bb93a55405440c01ca9b877cc96268.png)
A.![]() | B.4031 | C.![]() | D.8062 |
您最近一年使用:0次
2020-02-09更新
|
458次组卷
|
3卷引用:2016届上海市徐汇区高考一模(理科)数学试题
3 . 方程![](https://staticzujuan.xkw.com/quesimg/Upload/formula/704972980d341e5d9fd0a7dc1ba3feaf.png)
有一个正实数解,则
的取值范围为( ).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/704972980d341e5d9fd0a7dc1ba3feaf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e75fd7a30d037de637ad718011242e0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
A.![]() | B.![]() | C.![]() | D.前三个都不正确 |
您最近一年使用:0次
2020-02-08更新
|
204次组卷
|
2卷引用:2016届上海市奉贤区高三4月调研测试(二模)(文)数学试题
4 . 王先生购买了一部手机,欲使用中国移动“神州行”卡或加入联通的
网,经调查其收费标准见下表:(注:本地电话费以分为计费单位,长途话费以秒为计费单位.)
若王先生每月拨打本地电话的时间是拨打长途电话时间的
倍,若要用联通
应最少打多长时间的长途电话才合算.( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/110e329d74716ab387dc602bb2b4f998.png)
网络 | 月租费 | 本地话费 | 长途话费 |
甲:联通 |
|
|
|
乙:移动“神州行” | 无 |
|
|
若王先生每月拨打本地电话的时间是拨打长途电话时间的
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d91e07104b699c4012be2d26160976a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/110e329d74716ab387dc602bb2b4f998.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2020-02-07更新
|
197次组卷
|
2卷引用:2016届上海市宝山区高三上学期期末教学质量监测数学试题
5 . 已知
,集合
,
,如果
,则
的取值范围是_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ade5d5b877300624f159b0ef07dfb07.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ce6c9179552c5115767dfaf219d6c3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de479e3ee66a82bf4fecfe2b657b10d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96f1ba0a1129741502600e47bf058c98.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
您最近一年使用:0次
2020-02-04更新
|
302次组卷
|
2卷引用:2016届上海市奉贤区高三4月调研测试(二模)(文)数学试题
6 . 已知定义在实数集
上的偶函数
和奇函数
满足
.
(1)求
与
的解析式;
(2)求证:
在区间
上单调递增;并求
在区间
的反函数;
(3)设
(其中
为常数),若
对于
恒成立,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b41ae210dd892fc5428a51dd409aa69d.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
(2)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](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/4b029e85e686623cdef977b2cb1f207a.png)
(3)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d4db4036616944674cc36bb1388a2ea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10dc986f44a2f80e9b8d192eb3521398.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0eac2b31a19918895e5af2d316490e7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
2020-02-04更新
|
649次组卷
|
2卷引用:2016届上海市静安区高考一模(文科)数学试题
7 . 已知函数
的反函数是
,
在定义域上是奇函数,则正实数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/380bbacf854e30e2e747fc286d2b9997.png)
________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94d71804658ee452aaf7f9db4ef4161b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32d6b59f4796a45963dea76b89c72bea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32d6b59f4796a45963dea76b89c72bea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/380bbacf854e30e2e747fc286d2b9997.png)
您最近一年使用:0次
2020-02-03更新
|
228次组卷
|
5卷引用:2016届上海市奉贤区高三4月调研测试(二模)(文)数学试题
8 . 已知
是定义在
上的函数,如果存在常数
,对区间
的任意划分:
,和式
恒成立,则称
为
上的“绝对差有界函数”。注:
。
(1)证明函数
在
上是“绝对差有界函数”。
(2)证明函数
不是
上的“绝对差有界函数”。
(3)记集合
存在常数
,对任意的
,有
成立
,证明集合
中的任意函数
为“绝对差有界函数”,并判断
是否在集合
中,如果在,请证明并求
的最小值;如果不在,请说明理由。
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f030c36bb8786df88d401792062a4100.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2480f87a11c4cd450bc9454ea7276722.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f030c36bb8786df88d401792062a4100.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/804319e6cb58f07ee82ee364e334f36b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f7bba359204c3a83c5094e9bc09e4f1a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f030c36bb8786df88d401792062a4100.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd2955a1ae6ca7b3a7c9fd5b3e7bdc09.png)
(1)证明函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/587882ac081850caa4447c44a7dbb845.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e4b97703638756a4051a3dd0cdcf5a6.png)
(2)证明函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ddf20df06f5ff3e00e38f3e257f2ea6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e11f4ca0e7ace69f92130d0525bcdb3.png)
(3)记集合
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2130dde27163d8ae5a28aae9467e24b6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f0d68648b10fce54dfc19c5ee60086d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f20b947d584a1dc48676c2ae6e2af52.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de9bc59028761bee9de313ee6d5decc5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9ba29e6b864f89b4772130b6dc87427.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fa611cda56d55165309bdfbbf58240c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
您最近一年使用:0次
9 . 对于函数
定义
已知偶函数
的定义域为
当
且
时,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f1a2517f0164e720ac65d4712255a19.png)
(1)求
并求出函数
的解析式;
(2)若存在实数
使得函数
在
上的值域为
,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a28166da2b2a5e0717de00fd5b091b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b89b3eef7de7a81892b5e360a175194.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6466fc908c4968e38ad7ad9692320051.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b366bd12b731cfa3dda3a8b86d10f194.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c7a0b7b0df4f3429acbe1e9ce652741c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f1a2517f0164e720ac65d4712255a19.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3680b70df17f7751ff54f542c41132c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a1cfb60420ff7e72c1b9d64f69ae063.png)
(2)若存在实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0cad6d62f380f8eab9bdb542fd821f16.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fa457202281cca305e60eb4444aca3fa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c8a2c65c1d0c94d07c625701f87015db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b68034e76dfd3a44fed80314ad53c85.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
2020-02-02更新
|
301次组卷
|
2卷引用:2016届上海市虹口区高考一模数学试题
10 . 若函数
恰有两个零点,则实数
的取值范围是___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1f5899769f5e3a2fc97b77af53321ae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次