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Finding matrices from an inversive matrix

  1. Feb 8, 2015 #1
    • Moved from a technical math section, so missing the template
    Hello all,

    I'm trying to work on this problem for my homework, but I just can't seem to understand what to do.

    I know how to calculate the inversive of a matrix but I just don't know how to approach this kind of a problem.

    I was searching everywhere for some guidance on how to approach it, but I just don't understand how.

    Please, I am not looking for the answer, I am just looking for the method on how to solve it.

    I uploaded a picture with the question.

    Thank you so much
     

    Attached Files:

  2. jcsd
  3. Feb 8, 2015 #2

    Simon Bridge

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    Do you not know how to handle block matrixes?
     
  4. Feb 8, 2015 #3
    Well, I read about it and found a few youtube videos that helped me understand it much better, but still I don't know what to do.

    I calculated the inverse of matrix A, but then I got stuck on what should I do.

    Should I get the inverse of A just divide the matrix into block matrix and try to find a matrix that replaces the values?

    Thanks
     
  5. Feb 8, 2015 #4

    Mark44

    Staff: Mentor

    What happens if you multiply the two block matrices together? The product should be the identity matrix, right?
     
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