Find the magnitude and direction angle of the resultant of each pair of vectors.
1) m =(-15, 16) n = (2, -6)
2) t = (12, 16) u =(-12, 16)
3) m =(-17, 3) n = (8, 15)
4) a = (-6, 8) b = (19, 14)
5) t=(-12, -16) u = (15, 2)
6) a =(-8, 15) b = (16, -9)