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Math Help - Matrix problem

  1. #1
    Junior Member
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    Matrix problem

    Consider an arbitrary n x m matrix A.
    (a). What is the relationship between the row spaces of A and E = rref(A)?
    (b). What is the relationship between the dimension of the row space of A and rank(A)?
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  2. #2
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    dim(A)=rank(A)=rank(A^T), A^T:row\ spaces
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