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anonymous
 one year ago
If I am doing the derivative of cross product of two vectors  can I first take the cross product then take the derivative  or do I have to use the cross product rule for derivatives
anonymous
 one year ago
If I am doing the derivative of cross product of two vectors  can I first take the cross product then take the derivative  or do I have to use the cross product rule for derivatives

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anonymous
 one year ago
Best ResponseYou've already chosen the best response.0I am pretty sure it will work both ways just one longer than the other

Michele_Laino
 one year ago
Best ResponseYou've already chosen the best response.1we can show that the first derivative of a cross product between two vectors, say a, and b is given by the subsequent identity: \[\Large \frac{d}{{dt}}\left( {{\mathbf{a}} \times {\mathbf{b}}} \right) = \frac{{d{\mathbf{a}}}}{{dt}} \times {\mathbf{b}} + {\mathbf{a}} \times \frac{{d{\mathbf{b}}}}{{dt}}\]

Jhannybean
 one year ago
Best ResponseYou've already chosen the best response.1Known as the Product Rule

Jhannybean
 one year ago
Best ResponseYou've already chosen the best response.1Both methods should work out fine, like you said, one would just take a little longer.
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