Question

Daca A={0,1,2} si B={0,2,4},atunci A reunit cu B={...} si A × B={...}.

Answer 1

A U B = {0, 1, 2, 4}
A × B = {(0,0), (0,2), (0,4), (1,0), (1,2), (1,4), (2,0), (2,2), (2,4)}

Answer 2

AUB={0;1;2;4}
AxB={(0;0);(0;2);(0;4);(1;0);(1;2);(1;4);(2;0);(2;2);(2;4)}


extra
adaug si o diagrama, adica 2
una Euler Venn, pt reuniune, una, reprezentarea produsul cartezian in coordonate....carteziene!:)))