Question

vector cross product identity proof:
curl(F x G)=(G.del)F - (F.del)G + F(del.G) - G(del.F)
I understand that you need to use the product rule to expand curl(F x G) = curl(F x G) + curl(F x G), however i can't go any further... Can anyone help :(

Answer 1

You have to dig through your book, or books at your state college science library. Find these expressions may be equal to something else. If you are lucky you would find a book with the exact proof. You should be able to expand it but I don't know what will be crossing.