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Corollary 1
COROLLARY 1 (Three Dimensions) Let A = a1i + a2j + a3k and B = b1i + b2j + b3k be vectors in three dimensions and let c be a scalar. (i) A + B = (a1 + b1)i + (a2 + b2)j + (a3 + b3)k. (ii) A - B = (a1 - b1)i + (a2 - b2)j + (a3 - b3)k. (iii) cA = (ca1)i + (ca2)j + (ca3)k.
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Last Update: 2006-11-21