Question

Se dau multimle : A={l, a, c}, B={b, a, r, j}, C={a, l, b, s, t, r, u}, determinati (A intersectat cu B ) reunit cu B si A-C

Answer 1

AnB=(a)
(AnB ) u B=(a,b,r,i)

A-C=(c)

Answer 2

A={l,a,c}
B={b,a,r,j}
C={a,l,b,a,s,t,r,u}
(A∩B)∪B={a}∪B={a,b,r,j}
A-C={c}