1. Sep 16, 2012 #1

   shadow90

   

   1. The problem statement, all variables and given/known data
   Given the following Vectors: A+B= x1i + y1j and A-B= x2i + y2j
   what is A? and what is B?
   
   3. The attempt at a solution
   
   I wasn't really sure how to go about this problem. I tried setting one side to A and pluging it into the other eqn A.. however that made no sense to me.

    

   shadow90, Sep 16, 2012
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3. Sep 16, 2012 #2

   Simon Bridge

   

   Science Advisor

   Homework Helper

   That would work but try z1=A+B and z2=A-B, then what is z1+z2?
   (do the A and B part as well as the i and j part)

    

   Simon Bridge, Sep 16, 2012

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