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Let x =2i +mj and y = -31 +8j. Determine the value of m if: a) x and y are collinear b) x and y

Let x =2i +mj and y = -31 +8j. Determine the value of m if: a) x and y are collinear b) x and y are orthogonalLet a = [-2, 3, 5], b = [4, -1, 4] and c = [8, -6, 1]. Calculate (3c + 4b) . (a + b): O-129 O-117 O 201 Oo O 207 90 O -309

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