1 . 下列命题中所有正确的序号是____ .
(1)
,对应
:
是映射;
(2)函数
和
都是既奇又偶函数;
(3)已知对任意的非零实数
都有
,则
;
(4)函数
的定义域是
,则函数
的定义域为
;
(5)函数
在
和
上都是增函数,则函数
在
上一定是增函数.
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/52e062d3a53087fc9c6eb8807227c35d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca4ff0af96ea467337cb30c4c765b5f7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f660090d2d4e55a4cd72510f7e6cd302.png)
(2)函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7502bf95afa604ec1902107e15a2389a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd8a6617776eb998250d286636e9804d.png)
(3)已知对任意的非零实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/381f635c72defeeca3b965494343c3f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83a4bba774fa0b1d74270e7fe5077e55.png)
(4)函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e356a6e54a669fda721085096c8416db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2e88ebfb5c0d6cce558b515be06404d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/afa482d7bcaa385bfc3548b42a4bfb60.png)
(5)函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/152e7be0c0054be3a8d537ef39d35da7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5f00fdb0b1dfb21a2e192990b79be37.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e35ec6715ddfaf4309a7982509b591d7.png)
您最近一年使用:0次
名校
2 . 给定映射
,则在映射
下,
的原象是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27184d6b2eb919f62e6b0b41141d3ae0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca4ff0af96ea467337cb30c4c765b5f7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0481d24e2af1e0cd348732b9444d1dde.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2018-10-09更新
|
287次组卷
|
6卷引用:四川省资阳市乐至县良安中学2019-2020学年高一上学期期中数学试题
3 . 设集合
,则f:A→B是映射的是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f4bb821df069dd391e584c90f9b8737.png)
A.![]() |
B.![]() |
C.![]() |
D.![]() |
您最近一年使用:0次
2016-12-03更新
|
371次组卷
|
2卷引用:2015-2016学年四川成都市六校高一上学期期中联考数学试卷