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Thread: Matrix Algebra

  1. #1
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    Matrix Algebra

    Question:
    Find AB if A $\displaystyle = \begin{pmatrix}z & y\\
    x & w\\
    v & u
    \end{pmatrix} $ and B $\displaystyle = \begin{pmatrix}
    a & b & c\\
    d & e & f
    \end{pmatrix} $



    Solution:
    A has a 3 X 2 matrix and B has a 2 X 3 matrix
    thus AB has a 3 X 3 matrix

    $\displaystyle
    \begin{pmatrix}(za+yd) &(zb+ye) &(zc+yf) \\
    (xa+wd) &(xb+we) &(xc+wf) \\
    (va+ud)&(vb+ue) & (vc+uf)
    \end{pmatrix} $

    I would like to know if i am right
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  2. #2
    Member Walagaster's Avatar
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    Re: Matrix Algebra

    Yes, you are correct.
    Thanks from bigmansouf
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  3. #3
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    Re: Matrix Algebra

    Quote Originally Posted by Walagaster View Post
    Yes, you are correct.
    thank you
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