Odpowiedź:
Zadanie 2
a) A ∪ C = {3, 5, 7, 9, 4, 6}
b) A ∩ C = {7, 9}
c) C \ B = {3, 5}
d) (A ∩ B) \ C = {3, 9} \ C = {3}
e) B \ (A ∪ C) = B \ {3, 5, 7, 9, 4, 6} = {∅}
f) (A \ B) ∩ C = {5, 7} ∩ C = {7}