Find a + b, 2a + 3b, |a|, and |a b|. a = 2i 4j

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Find a + b, 2a + 3b, |a|, and |a – b|.

a = 2i – 4j + 4k, b = 2j – k

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Calculus

ISBN: 9780495011606

6th Edition

Authors: James Stewart

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