Given the points: A=(-2,5,1), B=(-4,7,-2), C =(-3,5,3) and let a = AB, b = BC. The...

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Given the points: A=(-2,5,1), B=(-4,7,-2), C =(-3,5,3) and let a = AB, b = BC. The angle between vector a and vector b, to the nearest degree, is equal to: ? Formulae: • If P(x1, y1, 21) and Q(x2, 32, 22) then PQ = (x2-x1, Y2 - Y1, 22-21). a.b a b • cos 0: . Given the points: A=(-2,5,1), B=(-4,7,-2), C =(-3,5,3) and let a = AB, b = BC. The angle between vector a and vector b, to the nearest degree, is equal to: ? Formulae: • If P(x1, y1, 21) and Q(x2, 32, 22) then PQ = (x2-x1, Y2 - Y1, 22-21). a.b a b • cos 0: .

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A 2 S 1 B 47 2 and C 3 5... View the full answer