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Cross Product Help

Discussion in 'Mathematics' started by 1033, Mar 13, 2011.

  1. Hi



    Where does the perpendicul vector go when



    a x b = |a||b|sin? n



    is rearranged to


    |a x b| ÷ |a||b| = sin? ??





    Thanks
     
  2. Hi



    Where does the perpendicul vector go when



    a x b = |a||b|sin? n



    is rearranged to


    |a x b| ÷ |a||b| = sin? ??





    Thanks
     
  3. n is a unit vector, when you take the lengths
    modulus of n = 1

     
  4. DM

    DM New commenter

    That is not a direct rearrangement. We are using the MAGNITUDE of the vector product now. n is a unit vector so it has magnitude 1. Clearly a scalar divided by the product of two scalars will be a scalar.

     
  5. DM

    DM New commenter

    Too slow.
     
  6. thank you - I thought it was something like that but I didn't know how to verbalise it! :)
     

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