Question

Definim A∆B=(A\B)u(B\A).Pentru multimile A={1;2;3} si B={2;4;6} determinati:
a) A∪B;
b)A∩B;
c)A\B;
d)B\A;
e)A∆B;
f)A∆{5,6}.

Answer 1

a)1,2,3,4,6
b)2
c)1,3
d)4,6
mai departe nu inteleg ce inseamna Δ