Question

Se A = {x∈R -1<x<3} e B = {x∈R/-3≤x≤2}, então, podemos afirmar que (A∪B) - (A∩B) é: 
Me ajudem aí, please.

Answer 1

A={0,1,2,3,4} B={-3,-2,-1,0,1,2}
(A∪B) =-3,-2,-1;0,1,2,3,4
(A∩B)=0,1,2
(A∪B) - (A∩B)=-3,-2,-1,3,4