The directions of all vectors and magnitudes of Vectors A, B, C, and E are shown in Figure P3.59. Using this information, complete parts a and b. a 70 B = 100 A = 125 Scale: 0 30% C = 50 50 45 D F --130 60 E-75 FIGURE P3.59 A vector equation can be written as A + B+CD=E+F. Graphically determine the magnitudes of vectors D and F.