Question

fie A=[x I x ∈ N* x< 5, B=[x I x ∈ Z, -2 ≤ x<3] Determina; AUB,A∩B,B\A

Answer 1

x<5=(-5; 5) dar x∈N* deci A=[1; 5)

B= [2; 3)

AUB= (-5; 5)

A inter. B= {2}

B\A= ---