Question

Let = (2 m) + (6 m) - (3 m) and = (4 m) + (2 m) + (1 m). The vector difference is:
A) (6 m) + (8 m) - (2 m)
B) (-2 m) + (4 m) - (4 m)
C) (2 m) - (4 m) + (4 m)
D) (8 m) + (12 m) - (3 m)
E) none of these

Answer

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