Dane są zbiory A i B. wypisz elementy zbiorów A\B ; B\A ( o ile one istnieją). a) A = {10, 20, 30, 40, 50} B = {10} A\B =............................ B\A =............................ b) A = {-4, -3, -2, -1} B = {0, 1, 2, 3, 4} A\B =............................ B\A =............................ c) A = {3, 4, 5, 6} B = {2, 3, 4, 5, 6, 7} A\B =............................ B\A =............................