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Math Help - Intersection of sets problem

  1. #1
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    Intersection of sets problem

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    Last edited by Aquameatwad; October 13th 2011 at 07:12 PM.
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    Re: Intersection of sets problem

    Draw five number lines one under another so that their origins are on the same vertical line, and draw C_1,\dots,C_5 on them. Then try to guess which points belong to all C_n's.
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    Re: Intersection of sets problem

    so as we go from 1 to infinity, the lim of n as n goes to infinity is 1/∞=0.

    Using this, the union would be CN= [0, 3)

    The intersection of CN = [1, 2)

    What do you think?
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    Re: Intersection of sets problem

    Quote Originally Posted by Aquameatwad View Post
    so as we go from 1 to infinity, the lim of 1 / n as n goes to infinity is 1/∞=0.

    Using this, the union would be CN= [0, 3)

    The intersection of CN = [1, 2)
    I don't see the original problem anymore, so I am not sure. However, I think the right end of C_n was 2+1/n, so 2 belongs to all C_n.
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