Question

Se dau multimile :A={1,2,0,3},B={3,2,4,5},C={0,2,3,7}.
Aflati:a)A reunit B,B reunit C,A reunit C
        b)A reunit B,A incrucisat C,B reunit C 
        c)A reunit (B incrucisat C);A incrucisat (B reunit C)
                  
                   VA ROG !!!!!!!!!!

Answer 1

a)AUB={0,1,2,3,4,5}
BUC={0,2,3,4,5,7}
AUC={0,1,2,3,7}
AUBUC={0,1,2,3,4,5,7}
b)AUB{1,2,3,4,5}
A intersectat C={0,2,3}
BUC={0,2,3,4,5,7}
C)AU(B intersectatC)={{1,2,0,3)U{{2,3}={{0,1,2,3}
A intersectat(BUC)={1,2,0,3}intersectat{0,2,3,4,5,7}={0,2,3}