1. Wyznacz zbiory An B, An C, BoC, An BoC dla: a) A = {1,3,4,6}, B = {3,5), C= (3,6,5), b) A = {1,2,7), B = (2,3,9), C = (1,3,5), c) A = {1}, B = {1,2}, C = {1,2,3). Wyznacz zbior 2 a D​