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Direction and signs of unit vectors

  1. Nov 27, 2011 #1
    If I have a negative quantity pointing in the positive z direction, is that the same as a positive quantity pointing in the negative z direction?

    e.g.

    does [itex]-A\hat{z}=A\hat{-z}[/itex]?
     
  2. jcsd
  3. Nov 27, 2011 #2
    yes they are the same
     
  4. Nov 27, 2011 #3
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