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a) Given |a| = 10, | = 14, and O = Z(a, b) = 150, find a . b b) If a and b are

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a) Given |a| = 10, | = 14, and O = Z(a, b) = 150, find a . b b) If a and b are unit vectors, and a + b = V3, determine 2a - 3b (a + 2b

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