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Math Help - Linear Transformation T-- HELP!!

  1. #1
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    Unhappy Linear Transformation T-- HELP!!

    the standard matrix
    [T ] of a linear

    transformation
    T is given. Use it to find T (x).



    T = (1 2
    3 4)

    x = (3
    -2)

    The parantheses are the best I could do to show the matrices.

    Please help and please use basic terminology. Im lost.

    I appreciate your time
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  2. #2
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    T(\vec x) =TX=\left(\begin{array}{cc}1&2\\3&4\end{array}\rig  ht)\left(\begin{array}{c}3\\-2\end{array}\right)=... where X is the coordinate matrix for \vec x.
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