1 . 设集合
,
,从集合
到集合
的映射的对应关系
,若
的像是
,
的原像是
,求
、
、
、
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f4ace488e5315f552e0a22d35cb9655a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8772b090c950e1b621a7610550726106.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24fddd91e7aa0cae97116c69df85feb7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8860d9787671b53b1ab68b3d526f5ca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b06e95b57b7a81cd81d05557a11fa92.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
![](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/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
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2018高一上·全国·专题练习
2 . 判断下列对应是不是从集合A到集合B的映射:
(1)A=N*,B=N*,对应关系f:x→|x-3|;
(2)A={平面内的圆},B={平面内的矩形},对应关系f:作圆的内接矩形;
(3)A={高一(1)班的男生},B=R,对应关系f:每个男生对应自己的身高;
(4)A={x|0≤x≤2},B={y|0≤y≤6},对应关系f:x→
.
(1)A=N*,B=N*,对应关系f:x→|x-3|;
(2)A={平面内的圆},B={平面内的矩形},对应关系f:作圆的内接矩形;
(3)A={高一(1)班的男生},B=R,对应关系f:每个男生对应自己的身高;
(4)A={x|0≤x≤2},B={y|0≤y≤6},对应关系f:x→
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d585d2d6643471640905d234d9538c5.png)
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