(cos 90* + i sin 90") (cos 270* + i sin 270") (cos 198 + i sin 198") Answer: (5,-60) - V2 (cos 162" + i sin 162") (cos 360* + i sin 360") Identify the complex con - 1/2 (cos 306" + i sin 306") number: 3 - 71 (cos 45 + i sin 45") Select one: O a. 7-3 - 12 (cos 234" + i sin 234") O b. 3+7i (cos 54% + i sin 54") Oc. 7+3 O d. -3+7i (cos 180 + i sin 180") Clear my choice (cos 342" + i sin 342") (cos 126 + i sin 126") Find the fifth roots of - Your answers should be - 12 (cos 18" + i sin 18") presented in degrees. Third root when k = 2 Choose... Fourth root when k = 3 Choose... Fifth root when k = 4 Choose... Second root when k = 1 Choose... First root when k = 0 Choose