A number 3 and 4 can you show all work ?

3) An object follows as shown below. What is the displacement from the last point to the starting point? Express your answer (a) in unit vector notation, and (b) as a magnitude and direction. AN 30 O 1.5 km 120 1.5 km 45 2 km 4) Given two vectors, A = 5.00 i + 2.00 j, and B = -2.00 i - 3.00 j, find (a) A + B; (b) |A + B|; (c) |A - B| (d) A - B