Răspuns :
A = {5, 11, 21/3}
B = {-8, 5, -4, 11, -1, 21/3, -21/3}
C = {5, 11, 21/3}
D = {-8, -4, -1, -21/3}
E = {-8, -4, -3/4, -1, -21/3}
F = {3/4, 5, 9/2, 11, 21/3}
A = {5, 11, 21/3}
B = {-8, 5, -4, 11, -1, 21/3, -21/3}
C = {5, 11, 21/3}
D = {-8, -4, -1, -21/3}
E = {-8, -4, -3/4, -1, -21/3}
F = {3/4, 5, 9/2, 11, 21/3}