AJUTOOOR !!!! VA ROOOOG !!!! DAU COROANAAA !!!! <3

Aflati a, b apartine ℤ, a < b :

a) [a;b] intersectat (-2;2)=[-1;1]
b )[a;2]∩(-3;b)=[-2;2);
c) (a;b) ∩ Z= {-3};
d).(a;b] ∩ N= {5}