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已知集合 http://picflow.koolearn.com/upload/2010-09/30/272a15e7-e221-47fb-bc21-a3eaefc9fc8b/paper.files/image010.gif,映射 http://picflow.koolearn.com/upload/2010-09/30/272a15e7-e221-47fb-bc21-a3eaefc9fc8b/paper.files/image011.gif中满足 http://picflow.koolearn.com/upload/2010-09/30/272a15e7-e221-47fb-bc21-a3eaefc9fc8b/paper.files/image012.gif的映射个数是(   )

发布时间:2021-08-04

A.2http://picflow.koolearn.com/upload/2010-09/30/272a15e7-e221-47fb-bc21-a3eaefc9fc8b/paper.files/image013.gif

B.4

C.6

D.9

试卷相关题目

  • 1已知集合 http://picflow.koolearn.com/upload/2010-11/30/5725c6a2-130d-47ed-b33b-2a0a8eb4993a/paper.files/image020.gif,按对应关系f不能构成从A到B的映射的是                   

    A.http://picflow.koolearn.com/upload/2010-11/30/5725c6a2-130d-47ed-b33b-2a0a8eb4993a/paper.files/image021.gif

    B.http://picflow.koolearn.com/upload/2010-11/30/5725c6a2-130d-47ed-b33b-2a0a8eb4993a/paper.files/image022.gif

    C.http://picflow.koolearn.com/upload/2010-11/30/5725c6a2-130d-47ed-b33b-2a0a8eb4993a/paper.files/image023.gif

    D.http://picflow.koolearn.com/upload/2010-11/30/5725c6a2-130d-47ed-b33b-2a0a8eb4993a/paper.files/image024.gif

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  • 2下列从P到Q的各对应关系f中,不是映射的是(  )

    A.P=N,Q=N*,f:x→|x-8|

    B.P={1,2,3,4,5,6},Q={-4,-3,0,5,12}, f:x→x(x-4)

    C.P=N*,Q={-1,1},f:x→(-1)x

    D.P=Z,Q={有理数},f:x→x2

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  • 3设A= http://picflow.koolearn.com/upload/2010-09/14/cbd349fe-b58b-4385-b119-602201d87868/paper.files/image026.gif,B= http://picflow.koolearn.com/upload/2010-09/14/cbd349fe-b58b-4385-b119-602201d87868/paper.files/image027.gif,从集合A到集合B的映射中,满足 http://picflow.koolearn.com/upload/2010-09/14/cbd349fe-b58b-4385-b119-602201d87868/paper.files/image028.gif的映射有(  )

    A.27个

    B.9个

    C.21个

    D.12个

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  • 4http://picflow.koolearn.com/upload/2012-11/13/492c3399-6c30-4d2a-ad71-5b766fa61ab5/paper.files/image025.png在映射“ http://picflow.koolearn.com/upload/2012-11/13/492c3399-6c30-4d2a-ad71-5b766fa61ab5/paper.files/image026.png”的作用下的象是 http://picflow.koolearn.com/upload/2012-11/13/492c3399-6c30-4d2a-ad71-5b766fa61ab5/paper.files/image027.png,则在映射 http://picflow.koolearn.com/upload/2012-11/13/492c3399-6c30-4d2a-ad71-5b766fa61ab5/paper.files/image026.png作用下点 http://picflow.koolearn.com/upload/2012-11/13/492c3399-6c30-4d2a-ad71-5b766fa61ab5/paper.files/image028.png的原象是(   )       

    A.http://picflow.koolearn.com/upload/2012-11/13/492c3399-6c30-4d2a-ad71-5b766fa61ab5/paper.files/image029.png

    B.http://picflow.koolearn.com/upload/2012-11/13/492c3399-6c30-4d2a-ad71-5b766fa61ab5/paper.files/image030.png

    C.http://picflow.koolearn.com/upload/2012-11/13/492c3399-6c30-4d2a-ad71-5b766fa61ab5/paper.files/image031.png

    D.http://picflow.koolearn.com/upload/2012-11/13/492c3399-6c30-4d2a-ad71-5b766fa61ab5/paper.files/image032.png

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  • 5点(x,y)在映射“ f”的作用下的象是点(x+2y, 3x-4y),则在此映射的作用下的点(5, 6)的原象是(  )

    A.(5, 6)

    B.( http://picflow.koolearn.com/upload/2010-11/20/3116c7da-6989-4341-8022-107f49e53094/paper.files/image021.gif, http://picflow.koolearn.com/upload/2010-11/20/3116c7da-6989-4341-8022-107f49e53094/paper.files/image022.gif)

    C.(17, -9)

    D.以上都不对

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  • 6下列四种说法正确的有(  ) ①函数是从其定义域到值域的映射; ②f(x)= http://picflow.koolearn.com/upload/2012-11/23/cbd6bc97-0307-4d20-b401-50f68c392578/paper.files/image041.pnghttp://picflow.koolearn.com/upload/2012-11/23/cbd6bc97-0307-4d20-b401-50f68c392578/paper.files/image042.png是函数; ③函数y=2x(x∈N)的图象是一条直线; ④f(x)= http://picflow.koolearn.com/upload/2012-11/23/cbd6bc97-0307-4d20-b401-50f68c392578/paper.files/image043.png与g(x)=x是同一函数.

    A.1个

    B.2个

    C.3个

    D.4个

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  • 7下列对应法则是从集合A到集合B的映射的是(  )

    A.A=R, B="{x" | x>0},http://picflow.koolearn.com/upload/2015-03/06/e7d33ffa-6bed-4b16-b42d-711dce645d2b/paper.files/image015.png;

    B.http://picflow.koolearn.com/upload/2015-03/06/e7d33ffa-6bed-4b16-b42d-711dce645d2b/paper.files/image016.pnghttp://picflow.koolearn.com/upload/2015-03/06/e7d33ffa-6bed-4b16-b42d-711dce645d2b/paper.files/image017.png

    C.A=N, B=http://picflow.koolearn.com/upload/2015-03/06/e7d33ffa-6bed-4b16-b42d-711dce645d2b/paper.files/image018.pnghttp://picflow.koolearn.com/upload/2015-03/06/e7d33ffa-6bed-4b16-b42d-711dce645d2b/paper.files/image019.png

    D.A=R, B=http://picflow.koolearn.com/upload/2015-03/06/e7d33ffa-6bed-4b16-b42d-711dce645d2b/paper.files/image020.png

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  • 8已知集合 http://picflow.koolearn.com/upload/2013-01/30/ceb20ca8-f11d-4c77-be2a-5a61bf0f33eb/paper.files/image001.png的映射的个数共有(    )个

    A.2

    B.4

    C.6

    D.9

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  • 9设A= http://picflow.koolearn.com/upload/2013-03/25/d898031b-4db4-4740-8ad4-db09f1f22124/paper.files/image060.png,B= http://picflow.koolearn.com/upload/2013-03/25/d898031b-4db4-4740-8ad4-db09f1f22124/paper.files/image061.png,从集合A到集合B的映射中,满足 http://picflow.koolearn.com/upload/2013-03/25/d898031b-4db4-4740-8ad4-db09f1f22124/paper.files/image062.png的映射有(   )

    A.27个

    B.9个

    C.21个

    D.12个

    开始考试点击查看答案
  • 10设集合A=B= http://picflow.koolearn.com/upload/2012-12/18/ac7ee4ef-ee55-422a-b748-884ef5065dd9/paper.files/image001.png,从A到B的映射 http://picflow.koolearn.com/upload/2012-12/18/ac7ee4ef-ee55-422a-b748-884ef5065dd9/paper.files/image002.png, 则在映射 http://picflow.koolearn.com/upload/2012-12/18/ac7ee4ef-ee55-422a-b748-884ef5065dd9/paper.files/image003.png下B中的元素(1,1)对应的A中元素为(   )

    A.(1,3)

    B.(1,1)

    C.http://picflow.koolearn.com/upload/2012-12/18/ac7ee4ef-ee55-422a-b748-884ef5065dd9/paper.files/image004.png

    D.http://picflow.koolearn.com/upload/2012-12/18/ac7ee4ef-ee55-422a-b748-884ef5065dd9/paper.files/image005.png

    开始考试点击查看答案
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