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What is (A cross B)^2 ?
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A and B are vectors, obv.
Is it (AxB).(AxB) or (AxB) x (AxB) ?
work it out. if A x B gives C, a vector orthogonal to A & B, what is C x C and C.C?
i should have said, work it out **within the context**. it could just be asking you to calculate |AxB| which involves squaring the individual components of the crossed vector.
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