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Grade 12 University: Algebraic vectors help!

  1. Mar 6, 2012 #1
    Hi everyone!
    1. The problem statement, all variables and given/known data


    2. Relevant equations
    I need to determine the magnitude of one of the sides?

    3. The attempt at a solution

    I don't understand how to solve for the magnitude.
    Last edited: Mar 6, 2012
  2. jcsd
  3. Mar 6, 2012 #2


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    Staff Emeritus
    Science Advisor
    Gold Member

    One of the sides of what? What are these angles of?

    Note that there is a template suggested when you make a new thread which I'll repost here:
    This is suggested for a reason, following it allows us to help you far more efficiently
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