1. Limited time only! Sign up for a free 30min personal 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!

Matrix proof question

  1. Mar 14, 2013 #1
    1. The problem statement, all variables and given/known data


    2. Relevant equations

    3. The attempt at a solution

    I understand that matrix in the form of A as above represents a rotation about the origin.. but for this question, I am actually clueless on what method should i use to prove it... Any hint?
  2. jcsd
  3. Mar 15, 2013 #2


    Staff: Mentor

    Seems like a natural for an induction proof.
  4. Mar 15, 2013 #3


    User Avatar
    Staff Emeritus
    Science Advisor

    It looks to me to be almost trivial! What is [itex]A^2[/itex]? [itex]A^{2n}= (A^2)^n[/itex].
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?
Draft saved Draft deleted

Similar Discussions: Matrix proof question
  1. Proofs about Matrix (Replies: 5)

  2. Matrix proof (Replies: 3)