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Math Help - Question concerning matrix dimensions.

  1. #1
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    Question concerning matrix dimensions.

    2. If matrix A has dimensions 3 x 2 and matrix B has dimensions 3 x 2, can matrix A and matrix B be multiplied?

    A. yes
    B. no

    4. If matrix A has dimensions 6 x 6 and matrix B has dimensions 6 x 1, what will be the dimensions of the product matrix of A and B?

    A. 6 x 1
    B. 6 x 6
    C. 1 x 6
    D. These two matrices can’t be multiplied
    Last edited by topsquark; May 21st 2011 at 03:23 PM. Reason: Waaaay to many questions
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  2. #2
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    2. B. Matrices A and B can only be multiplied if dimension A = n x m and B = m x p
    4. A. The result of the multiplication AB (see answer 2) will be a matrix of dimension n x p
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