Răspuns :
A = Ø, B = {8, 9, 10}
A = {8}, B = {9, 10}
A = {8, 9}, B = {10}
----------------------------
A = {8}, B = {9, 10}
A = {8, 9}, B = {10}
----------------------------
A poate avea {9,10}
B={8}
A= {8,10}
B={9}
A={8,9}
B={10}
si invers
B={8}
A= {8,10}
B={9}
A={8,9}
B={10}
si invers