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- Given two vectors: M = -3î + 6j – 5k and N = -21 + 3j + k The magnitude of vector N is: A) 3.74 B) 8.37 70 D) 14 E) No AnswerAnswer must be in standard form scientific notation with SI units that do not have prefixes ( except for kg.) all angles and directions must be calculated to the nearest 0.1 deg. (Tenth of a degree) and entered in standard form scientific notation.question d)