名校
解题方法
1 . 已知函数
的定义域均为R.给出以下3个命题:
①
一定可以写成一个奇函数和一个偶函数之差;
②若
是奇函数,且在
是严格减函数,则
在R上是严格减函数;
③若
在R上均是严格增函数,则
中至少有一个在R上是严格增函数.
其中,假命题的序号为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc4978f812146b4566467ee255fc1c71.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
②若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9414348d57c7fc77dcfa8f0744cb0c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
③若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f015b973f6cd8c0dec56c3535c3363d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc4978f812146b4566467ee255fc1c71.png)
其中,假命题的序号为
您最近一年使用:0次
解题方法
2 . 设函数
的表达式为
(
且
)
(1)判断函数
的奇偶性,并说明理由;
(2)若
,证明:
是一个常数;
(3)在(2)的条件下,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a05a6855ef66004aade9a281cd7c6b2f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c400a615a16a1662de98dfb4e49d58d3.png)
(1)判断函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6e108638ae5a58146db45291064fdea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/491b48dbb284e176596caa752fdd0099.png)
(3)在(2)的条件下,求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99d24d8658766f5744e37d1c4aaf3e69.png)
您最近一年使用:0次
名校
解题方法
3 . 对于定义域在
上的函数
,定义
.设区间
,对于区间
上的任意给定的两个自变量的值
、
,当
时,总有
,则称
是
的“
函数”.
(1)判断函数
是否存在“
函数”,请说明理由;
(2)若非常值函数
是奇函数,求证:
存在“
函数”的充要条件是存在常数
,使得
;
(3)若函数
与函数
的定义域都为
,且均存在“
函数”,求实数
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a43b2faa4f81f32d94612dce724e772b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d25597c0f369019a0901849bc12da1f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1cb71b8c83c4f5a3146e3871b6308d4b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e105760638b22b26ff8bec4354255e4c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c814128ea2139e33db94ea590e7c2223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aec19b68e3add9d5bfcc6269a1855b87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26d8dafc71b106f39f4e15442220897b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c61c8d37c767ba727cc7f5f7e00a7d96.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b68df477b3ee45ac0f725db00d465a1.png)
(1)判断函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d6f99885e464b84f1dc2b897070cbdd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b68df477b3ee45ac0f725db00d465a1.png)
(2)若非常值函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0d314b6f3729e70a0d0c60414aec69c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2c9418985f008bb9ab6482930f187dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b68df477b3ee45ac0f725db00d465a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/950c0c0b3b3c63fd0e7700e22c0f7bd9.png)
(3)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d17dcc171997459b17118083b339145.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ccbf6c35d8fc9e12a15cc7e0643ca35.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a43b2faa4f81f32d94612dce724e772b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b68df477b3ee45ac0f725db00d465a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
2024-01-13更新
|
521次组卷
|
6卷引用:上海市东华大学附属奉贤致远中学2023-2024学年高一上学期12月教学评估数学试题
上海市东华大学附属奉贤致远中学2023-2024学年高一上学期12月教学评估数学试题上海市奉贤区2022-2023学年高一上学期1月期末练习数学试题(已下线)单元高难问题03函数恒成立问题和存在性问题-【倍速学习法】(沪教版2020必修第一册)(已下线)专题14函数的基本性质-【倍速学习法】(沪教版2020必修第一册)(已下线)高一上学期期末考试解答题压轴题50题专练-举一反三系列江西省上饶市婺源天佑中学2023-2024学年高一上学期期末模拟数学试题
4 . 已知等差数列
,公差为
,则下列命题正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76aef4cdcb5af742ce28003b7b6c8c20.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c106366b2002aadddcf6e7f5fb6d249.png)
A.函数![]() |
B.若函数![]() ![]() |
C.若![]() ![]() |
D.若![]() ![]() |
您最近一年使用:0次
名校
解题方法
5 . 已知:奇函数
,
在
严格递减,则下列结论正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24a57996290794e082b21d8f1dfc322a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d562dc22dfb3b81d0c3f88b54d063c2f.png)
A.![]() ![]() | B.![]() ![]() |
C.![]() ![]() | D.![]() ![]() |
您最近一年使用:0次
20-21高三上·上海浦东新·阶段练习
名校
解题方法
6 . 定义在
上的函数
,若满足下面某一个条件时,
必然没有反函数,请写出所有这样条件的编号: _________ .
(1)
是偶函数;
(2)存在实数
,
在
上单调递增,在
上单调递减;
(3)存在非零实数
,
,使得对任意实数
;
(4)对任意实数
,均有
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a43b2faa4f81f32d94612dce724e772b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)存在实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b73abfe4bc26b1ded680d7abb1a2cac.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/42e682f89425146ac9cb16b2f13a014c.png)
(3)存在非零实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5591c3c8ac279146565e26da92b751a3.png)
(4)对任意实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60fa1c6099f1f6653d53e04bbbb77bd3.png)
您最近一年使用:0次
名校
7 . 对于函数
,其中
,已知
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1faf944e87519578b4fa27d462def5bb.png)
___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0072b677f510458c3d209a856d682ac2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/782ae6645ea0ad8de5f6900feb76ab7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1faf944e87519578b4fa27d462def5bb.png)
您最近一年使用:0次
2022-12-13更新
|
982次组卷
|
5卷引用:上海市华东师范大学附属东昌中学2021-2022学年高一下学期期末数学试题
上海市华东师范大学附属东昌中学2021-2022学年高一下学期期末数学试题(已下线)7.4 正切函数的图像与性质-高一数学同步精品课堂(沪教版2020必修第二册)(已下线)专题03 三角函数-《期末真题分类汇编》(上海专用)浙江省绍兴市2022-2023学年高一上学期期末模拟数学试题吉林省白山市抚松县第一中学2023届高三上学期12月阶段测试数学试题
名校
8 . 已知函数y=f(x)的定义域为R,当x>0时,f(x)
,则下列说法不正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aade8e4f24c0218a723cfdfe13c4420e.png)
A.若y=f(x)为偶函数,则当x<0时,f(x)>2 |
B.若y=f(x)为偶函数,则不存在非零实数x0,使得f(x0)≤2 |
C.若y=f(x)为奇函数,则当x<0时,f(x)<﹣2 |
D.若y=f(x)为奇函数,则不存在实数x0,使得﹣2<f(x0)<2 |
您最近一年使用:0次
解题方法
9 . 若函数
满足
,则称函数
为“倒函数”.
(1)判断函数
和
是否为倒函数,并说明理由;
(2)若
(
恒为正数),其中
是偶函数,
是奇函数,求证:
是倒函数;
(3)若
为倒函数,求实数m、n的值;判定函数
的单调性,并说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fdfaa3716ef9b13f4bdfe0b234df9932.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
(1)判断函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4508929da7db1adb7cc7a70e91be543.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3dc9f0517304e39719c81d724ce2b860.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c118383937a12c505289f31b5d70a3f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bde66f0ef8ea3ac6d6ac91a93ba69ae5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bde66f0ef8ea3ac6d6ac91a93ba69ae5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23b2373399a8dcbcfaa270d31e5e7bdb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/544f91d4fb22c571db9f8481b72a0419.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4211dfe3924d94e4b99f525e43a31cc3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f786a5701dc1a8a015e8843c3360151b.png)
您最近一年使用:0次
2022·上海·模拟预测
名校
解题方法
10 . 已知
为奇函数,当
时,
,且
关于直线
对称,设
的正数解依次为
、
、
、
、
、
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1245c7633f46a29d5dd9269b77e8487.png)
________
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bcac1e85463a3177f487d896b3d1d24c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64263fe2ca48e694c87496d61e63fb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b384412acba251d87902ab928902f16.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26af862ac8e4e2fe03204b0463a7a789.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c814128ea2139e33db94ea590e7c2223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aec19b68e3add9d5bfcc6269a1855b87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/291c25fc6a69d6d0ccfb8d839b9b4462.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37e5531913e2f170465d8df01795cd51.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3282e5fde4ae53fcb1bb072a685304c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37e5531913e2f170465d8df01795cd51.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1245c7633f46a29d5dd9269b77e8487.png)
您最近一年使用:0次
2022-01-14更新
|
517次组卷
|
4卷引用:上海市2022届春季高考数学试题