Prove in two ways that for scalars a and b, (au) (bv) = ab(u v).
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Prove in two ways that for scalars a and b, (au) × (bv) = ab(u × v). Use the definition of the cross product and the determinant formula.
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The result is trivial if either a 0 or b 0 so assume ab 0 Note that the ...View the full answer
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Related Book For
Calculus Early Transcendentals
ISBN: 978-0321947345
2nd edition
Authors: William L. Briggs, Lyle Cochran, Bernard Gillett
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