Given that b = -3î + (4 + m)ĵ – k ,č = -9î + 12j – (3+ m)k , ,Q = (5+ m, 4,0 + m) and P = (-1,4 + m, –3). Find: %3D The unit vector along the direction of a vector has Q as initial point and P as a terminal point Find the angle between the vectors b and ở using scaler product

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