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Math Help - [SOLVED] How do you find matrix this kind of matrix?

  1. #1
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    [SOLVED] How do you find matrix this kind of matrix?

    21. Solve the following matrix equation for X.

    Basically, the question gives us 3 matrices.

    [A] [X] = [C]

    matrix A and C are given, but I'm supposed to find matrix X somehow.

    I'm a little lost, I think I can find C by finding the inverse of A while applying the operations to matrix C. This new matrix C should then be X but I'm not sure I'm going about this right.

    In the example given I'm getting massive ratios and it's not like the book to throw such a tedious problem at the students which leads me to self-doubt.

    Please help.
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  2. #2
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    If you need to find X then...

    AX=C

    A^{-1}AX=A^{-1}C

    IX=A^{-1}C

     <br />
X=A^{-1}C<br />
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  3. #3
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    Okay so I basically find the inverse of A, then multiply it with C and the resulting matrix will be X?
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  4. #4
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    Quote Originally Posted by thekrown View Post
    Okay so I basically find the inverse of A, then multiply it with C and the resulting matrix will be X?
    correct.
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  5. #5
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    Cool man I can do this. Thanks for your help.
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