a) 1: {9} 2:{5,6,7,8,9,10,11,12,13} b) 1: ∅ 2: { 1,2,3,4,5,6,7,8} c) 1: { 1,3,5,7} 2 : {1,2,3,4,5,6,7,8,9}
a) 1: {9} 2:{5,6,7,8,9,10,11,12,13} b) 1: ∅ 2: { 1,2,3,4,5,6,7,8} c) 1: { 1,3,5,7} 2 : {1,2,3,4,5,6,7,8,9}