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Math Help - subgroup

  1. #1
    Newbie
    Joined
    Feb 2010
    Posts
    9

    subgroup

    By applying the subgroup test or otherwise can someone show me if this is a subgroup

    subgroup-untitled.jpg

    thanks
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  2. #2
    MHF Contributor
    Joined
    Apr 2008
    Posts
    1,092
    [2] + [12] = [1] which is not in H. Therefore, H is not a subgroup of G.
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