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Math Help - equivalent matrices

  1. #1
    Junior Member
    Joined
    Jun 2006
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    59

    equivalent matrices

    Show A and B are equivalent and state their common rank

    1 2 ________A
    3 4

    4 3 _________B
    2 1

    A and B are matrices that they are 2 by 2(I couldn't put a braket around it

    What I did is I did RREF and I got the same Identity. But, that doesn't prove that they are equivalent
    Also, I know the rank is 2(but is it b/c number of nonzero row?-explain for me)

    I thank you all in advance,
    thank you
    Last edited by Judi; January 24th 2007 at 04:02 PM.
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