Dau coroana!!URGENT!!!

A={0,1,2,3,4,5,6,7,8,9,10,11,12}
B={0,1,2,3,4,5,6,7,8,9,10,11,12,13}
AuB={0,1,2,3,4,5,6,7,8,9,10,11,12,13}
AnB={0,1,2,3,4,5,6,7,8,9,10,11,12}
A-B= multimea vida
B-A= {13}
Explicație pas cu pas:
A=0,1,2,3....12
B=0,1,2....13
AUB=0,1,2,3,4,5,6,7,8,9,10,11,12,13
A Intersectată Cu B=0,1,2 3,4,5,6,7,8,9,10,11,12
A-B=Mulțimea Vidă (Un 0 tăiat)
B-A=13