Question

Se dau multimile:
A={x/x ∈ N, x ≤ 6}
B={ x/x ∈ N, 5< x< 7}
C={x/x ∈ N, 3< x< 7}
aflati cardinalul multimilor: (B/A) U (C/B), (A un u intors semnul de intersectie)/(B U C)

Answer 1

A={0,1,2,3,4,5,6}
B={ 6 }
C={4,5,6}
B/A={multimea vida}
C/B={4,5}
Multime vida U {4,5}={4,5}
BUC={6}
Sper ca te-am ajutat!
:)