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Vector Proof

  1. Oct 3, 2011 #1
    1. The problem statement, all variables and given/known data
    The problem is here: http://imgur.com/aKBkz" [Broken]


    2. Relevant equations



    3. The attempt at a solution
    http://imgur.com/0jyRD" [Broken]

    I think i solved it correctly but I wanted to make sure since I'm pretty terrible with proofs. I was wondering if you have to assign values to vector A such as <a1,a2,a3> and then cross product everything out. Would that be valid since you dont know how big the vector is going to be?
     
    Last edited by a moderator: May 5, 2017
  2. jcsd
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