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Math Help - Ven Diagrams and Sets

  1. #1
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    Ontario
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    Unhappy Ven Diagrams and Sets

    Given that the universal set S is the set of all the real numbers, illustrate the relationship between the following sets using a Venn diagram(4marks)

    A= { x| set of all odd numbers}
    B= { x| set of all even numbers}
    C= { x| set of all positive numbers}
    D= { x| set of all real numbers such that -4<x<4}


    I started drawing the Venn diagram, and it just didn't seem right.thank you!
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  2. #2
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    Apr 2009
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    Hi, I am stuck on this question too. I guess you are also an ILC student!!

    a=-3,-1,0,1,3
    b=-4,-2,0,2,4
    c=1,2,3,4
    d=-4,-3,-2,-1,0,1,2,3,4

    I think this diagram would have 4 circles, except that they will not intersect, which is where I am confused. Unless d =S, which is the universal set... Or a, b, and c are all smaller circles within the big circle D...

    then :
    ab=0
    bc=2,4
    ac=1,3
    abc= blank

    and D would be all of it, so -4,-3,-2,-1,0,1,2,3,4

    I went onto Tutor.com, but the tutor could not figure it out... but this seems to make the most sense to me.

    Check out my attatchment

    What do you think?

    Daisy
    Attached Thumbnails Attached Thumbnails Ven Diagrams and Sets-39venndiagram.bmp  
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