Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Matrix algebra - matrix equation

  1. Oct 8, 2006 #1
    A=(5, 4) I (1, 0)
    (4,6) (0,1)

    Those are matrix by the way.

    How do I show A^2=11A-18I? I know i'm overlooking something, but i don't know what. Any tips would be helpful
  2. jcsd
  3. Oct 8, 2006 #2
    ah im sorry, I meant to put this in the question section, please move!
  4. Oct 8, 2006 #3


    User Avatar
    Homework Helper

  5. Oct 8, 2006 #4

    matt grime

    User Avatar
    Science Advisor
    Homework Helper

    Let me ask you this.

    Let x=3. How do you show that x^2=2x+3?
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?

Similar Discussions: Matrix algebra - matrix equation
  1. Algebraic Equation (Replies: 6)