Find the angle between each of these pairs of vectors:
(a) A = -2.00î +6.00ĵ and B = 2.00î - 3.00ĵ
(b) A = 3.00î + 5.00ĵ
and B = 10.00î + 6.00ĵ
(c) A = -4.00î +2.00ĵ
B = 7.00î + 14.00ĵ
Problem number 1.43 on page
