Question

Fie A = { 1 , 2 } si B = { - 1 , 0 , 3 } . Determinati : A ( un U reuniune cred ) B , A ( un U intors ) B ; A \ B ; B \ a

Answer 1

A U(reuniune) B={-1,0,1,2,3}
A\B={1,2}
B\A={-1,0,3}
B,A(un U intors)={0}