Vectors v and w are given in magnitude and direction form. find the magnitude and direction of the sum v + w and
the difference v − w. give the magnitude to the nearest tenth of a unit and the direction to the nearest tenth of a
degree.
a. v: magnitude 20, direction 45° north of east
w: magnitude 8, direction 45° west of north
b. v: magnitude 12.4, direction 54° south of west
w: magnitude 16.0, direction 36° west of south