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Homework Help: Proving this projection

  1. Mar 2, 2009 #1
    1. The problem statement, all variables and given/known data
    How would I prove this projection? I attached the equation.

    2. Relevant equations
    See attached equation.

    3. The attempt at a solution
    I tried using the formula with numbers but I didn't get to prove the equation. Any help would greatly appreciated.

    Attached Files:

  2. jcsd
  3. Mar 2, 2009 #2

    Tom Mattson

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