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Distributive property of the cross product

  1. Sep 1, 2008 #1
    Prove the following?

    Vectors
    (v-w)x(v+w)=2(vxw)
     
  2. jcsd
  3. Sep 1, 2008 #2

    Defennder

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    Re: vectors

    Just use the distributive property of the cross product.
     
  4. Sep 1, 2008 #3
    Re: vectors

    So im guessing if you have VxV and WxW they are both equal to 0
     
  5. Sep 1, 2008 #4

    nicksauce

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    Re: vectors

    Why do you have to guess that? What's the cross-product of two parallel vectors?
     
  6. Sep 1, 2008 #5

    Defennder

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    Re: vectors

    Yes.
     
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