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Verify the Product Rule for cross products

  1. Jan 18, 2012 #1
    cross products= vector(a)*vector(b)=Magnitude(a)*magnitude(b)*cos(theta)
    I'm having trouble on how to get started...
     
  2. jcsd
  3. Jan 18, 2012 #2

    lanedance

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    first that equation is not correct

    you probably want to help yourself by using a different symbol for the cross product like x

    and you want to be careful with your magnitudes, as the result of a cross product is a vector, which can't be equal to a scalar
     
  4. Jan 18, 2012 #3

    lanedance

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    also are you sure that's a cos? what's the cross product of 2 parallel vectors?
     
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