r Given the vector F = 123 + 20f 1672 determine the following: a. Multiply vector 13" by the scalar 3 3? = b. Divide vector 13" by the scalar 4 F74 = c. Determine the magnitude of vector 13" ||= True or False: a. A unit vector always has a magnitude of 1. b. A unit vector is unitless. r Given the vector P = Bi 41' + 12K determine: a. Unit vector along line of action of vector I3, p = b. Direction cosine angles (degrees) for vector F", a: 3: y