名校
1 . 已知集合
,
,
是从集合A到集合B的映射:
,
,
,则在f的作用下,原像2的像是___________ ,像
的原像是___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ded8f0e8f20faa4487e950235caf8817.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23e84710fa14977c09a2f851b83bcb3e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca4ff0af96ea467337cb30c4c765b5f7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb339cdc781caef1c57d62e3a9c70a5c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ed006b944ea64f970fee46e2f558467.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84ae23cf6a2823451f9676220b32c782.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/062b4b2ea7f945acb2afddbb6ecd4bfe.png)
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名校
2 . 已知点
在映射
作用下的象是
,
,
,则点(5,1)的原象是________
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b96922ebe790f30854a4b9459f841556.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a662f934b3bf3ad6f1f1414fedb381d8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c77a522beb24be7c3dbbff09ec49fcf4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4166972dec0aa3e8694a44eeb941a08.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54dad48527a47eab4a5916ab0421cc71.png)
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名校
3 . 已知映射
,则在映射
的作用下元素
的原像为_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27787e54bc5217c1c65823bf8e58c8b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca4ff0af96ea467337cb30c4c765b5f7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f4d63efe3b074b8644890d2c4902f26.png)
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名校
4 . 给定映射
,在映射f下象
的原象是__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/451270bcd703b4d5f4a8a004aab0336a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3654254401fc902c3cb4912969f21f88.png)
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20-21高一上·广西南宁·阶段练习
5 . 已知映射
:
由表给出,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0632bc67a48ee16de53fe7e19ec3328.png)
________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca4ff0af96ea467337cb30c4c765b5f7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/012a1a6fe832147ecabfd6365f23680d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0632bc67a48ee16de53fe7e19ec3328.png)
![]() | 1 | 2 | 3 | 4 |
![]() | 4 | 3 | 1 | 2 |
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20-21高一上·江西南昌·阶段练习
6 . 已知从集合A到集合B的映射满足
,若
,则B中与之对应的元素为____ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81d5159251e1a901874527dc98aaf43b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07a234a21ceffb80072a599edecd6002.png)
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20-21高一上·江西南昌·阶段练习
名校
7 . 已知
,
,从集合A到集合B的映射
,则B中元素
的原像为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7253dde017caeab01faed934959a2f8f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23e84710fa14977c09a2f851b83bcb3e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/156437ab4b456f08420f31146d64e790.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41ab109ec88d6f3d24b2f01ca77e7038.png)
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8 . 定义区间
长度为
,区间
在映射
所得的对应区间为
,若区间
的长度比区间
的长度大
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6c57bbef89a37f1a3808c0ceeac0c22.png)
_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4776c85b79df196f606d3ebf3697fbc3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13502d46b8563c54c09b29b20b3006a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e3f7f762131c77a3c8440b4a3bc1d12.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f512a51125ce645c7fd2488aa9224aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4776c85b79df196f606d3ebf3697fbc3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4776c85b79df196f606d3ebf3697fbc3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e3f7f762131c77a3c8440b4a3bc1d12.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ca7d1107389675d32b56ec097464c14.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6c57bbef89a37f1a3808c0ceeac0c22.png)
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2020-10-16更新
|
118次组卷
|
2卷引用:四川省成都市第二十中学校2019-2020学年高一10月月考数学试题
名校
9 . 已知映射
,则17的原象是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c46662493de740f6a64fac0462b51d98.png)
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10 . 已知集合A={﹣1,2,3},f:x→2x是集合A到集合B的映射,则写出一个满足条件的集合B_____ .
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