I have got nowhere with this question: Non-zero non-parallel vectors a, b and c are such that b x c = c x a. Prove that a + b = kc for some scalar k.
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Originally Posted by Stuck Man I have got nowhere with this question: Non-zero non-parallel vectors a, b and c are such that b x c = c x a. Prove that a + b = kc for some scalar k. By the given we know that But Now expand the RHS and solve for .
I had not used the vector triple product before. I think I have done this now.
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