Question

Se considera multimile A = { x | x ∈ ℕ , 3 < x < 8 } si B = { x | x este restul impartirii unui numar natural la 6 }
 Aflati : A ; B ;  A ∪ B ; A ∩ B ; B\A ; ( A\B U ( B\A ) .

Answer 1

A={4,5,6,7}
B={0,1,2,3,4,5}
AUB={1,2,3,4,5,6,7}
A ∩ B={4,5}
B\A={0,1,2,3}
( A\B) U ( B\A )={6,7}U{{0,1,2,3}={0,1,2,3,6,7}