Odpowiedź:
a) U = {0,1,2,3,4,5,6,7,10,15,20} A = {1,2,3,4,5,6} B = {0,5,10,15,20}
A' = {0,7,10,15,20}
B' = {1,2,3,4,6,7}
A' ∪ B = {0,5,7,10,15,20}
B' ∩ A = {1,2,3,4,6}
A' - B' = {0,7,10,15,20}
b) U = {1,2,3,4,5,9,16,25) A = {1,4,9,16,25} B = {1,9,25)
A' = {2,3,5}
B' = {2,3,4,5,16}
A' ∪ B = {1,2,3,5,9,25}
B' ∩ A = {16}
A' - B' = {Ф}