1. Not finding help here? Sign up for a free 30min tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Linear algebra matrices multiplication (transpose)

  1. Oct 5, 2011 #1
    1. The problem statement, all variables and given/known data

    We are looking for the matrix A

    2. Relevant equations

    (A^transpose)^transpose=A

    3. The attempt at a solution

    i would start with finding the transpose of the matrix.

    -5 0
    -8 -7
     

    Attached Files:

  2. jcsd
  3. Oct 6, 2011 #2

    Mark44

    Staff: Mentor

    OK, so
    [tex]((2A - I)^T)^T = \begin{bmatrix}-5&0\\-8&-7\end{bmatrix}[/tex]

    Now what? Use your relevant equation to simplify the left side.
     
  4. Oct 6, 2011 #3
    S0 + identity matrix on left side... =

    [-4 0] ... then /2= [-2 0]
    -8 -6 ...................-4 -3

    GOT IT!
     
    Last edited: Oct 6, 2011
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook




Similar Discussions: Linear algebra matrices multiplication (transpose)
Loading...