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Math Help - Sets question

  1. #1
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    Sets question

    Hi,

    I have two sets:-

    A = {3, 4, 5, 6, 9} and B = {3, 5, 7, 8}

    I have figured out that A n B = 5 as '5' appears in both sets.

    What I am now trying to do is work out:-

    A u B with a bar over the A

    but don't know what I am looking for.

    If anyone can offer me advice on this it will be greatly appreciated.

    Thanks!
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  2. #2
    Bar0n janvdl's Avatar
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    Quote Originally Posted by Swerve View Post
    Hi,

    I have two sets:-

    A = {3, 4, 5, 6, 9} and B = {3, 5, 7, 8}

    I have figured out that A n B = 5 as '5' appears in both sets.

    What I am now trying to do is work out:-

    A u B with a bar over the A

    but don't know what I am looking for.

    If anyone can offer me advice on this it will be greatly appreciated.

    Thanks!
    A = {3;4;5;6;9}
    B = {3;5;7;8}

    A \cap B = {3;5}

    \bar{A} = A ^{c} (It is the complement of A)

    Thing is we'll need Omega to see what A ^{c} can be equal to.
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  3. #3
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    o.O! I see, simple really.

    Many thanks for your help janvdl.

    Swerve.
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  4. #4
    Bar0n janvdl's Avatar
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    Quote Originally Posted by Swerve View Post
    o.O! I see, simple really.

    Many thanks for your help janvdl.

    Swerve.
    You're welcome, I'm glad I could clarify.
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