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Cross product and dot product

  1. Apr 21, 2010 #1
    i'm reviewing for a test and I can't remember how to do the cross product of (2A)x(3B)
    or how to find the angle theta when given components. or dot product: 2A . 3B
     
  2. jcsd
  3. Apr 21, 2010 #2
    Are (2A) and (3B) normal vectors? If so, the link in your own post will tell you
    how to do a cross product. If not, what are they?
     
  4. Apr 21, 2010 #3
    they are and i already know
    Rz=Az+Bz
    Ry=Ay+By
    Rz=Az+Bz

    but im not sure how to do (2A)x(3C)
     
  5. Apr 21, 2010 #4
    or (2A)x(3B)
     
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