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9. Determine if u = (1, 2, -1), v = (-3,1, -1) and w = (9,3, -1) are a spanning set. (3 marks) 10. Two

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9. Determine if u = (1, 2, -1), v = (-3,1, -1) and w = (9,3, -1) are a spanning set. (3 marks) 10. Two dogs are pulling a sleigh. If Dog A pulls at 5N [??E] and Dog B pulls at 6N[??W], determine their directions given an equilibrant of 8N [N30'E]. (4 marks)

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