n 3 Following the definition of the principal argument of the complex number and the fact that Arg(z1 22) = Arg(z1) + Arg(z2). If 21 = +i), 22 = (-+). then Arg(21 z2) is ed -2), Iout of Select one: question 11 O a. 12 O b. 2 3 O c. 5 11T 12 O d. -* n 4 If C is the circle |2| = 2, given clockwise, then the integral Sa (z? 3z)dz is equal to ed out of Select one: O a. 2 question O b. - 2 O . 1/3 O d. 0