Vector identities for divergence and curl of cross products

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    Curl Divergence
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Aronyak
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Please Someone explain why:
1.div(F×G)=GcurlF-FcurlG
2.curl(F×G)=F.divG-G.divF+(G.∇).F-(F.∇).G
 
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Welcome to PF!

Hi Aronyak! Welcome to PF! :wink:

You can work it out, either by using x y and z coordinates, or by using the einstein summation convention …

show us what you get. :smile:​