Question

Me ajudem a resolver a D) e a E) ?? Por favor

Answer 1

D)

(A ∩ B ) ∪ ( B ∩ C)=

{2;3} U {2;5} = {2;3;5}

E)

(A∩C)UB=

{2;4} U {2;3;5;6;7} = { 2;3;4;5;6;7}