Ratunku :) Elo :): siemka mam wyznaczyć zbiory... A ∪ B, A ∩ B, A\B i B\A a) A= (−∞;2} ∪ (3; + ∞) , B = {1;5} b) A= {−3;0) ∪ (2;4), B= ( −∞; −1)

Janek191: a) A ∪ B = ℛ A ∩ B = ( 1, 2) ∪ ( 3, 5) A \ B = ( −∞ , 1 > B \ A = < 2 , 3 >