Răspuns :
A={0, 1, 2, 3, 4, 5, 6, 7}
B={4, 5, 6, 7, 8, 9}
C={8, 9, 10, 11, 12, 13, 14}
D={11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22}
E={1, 2, 3, 6, 9, 18}
F={1, 3, 5, 7, 9, 11}
Explicație pas cu pas:
а.{1,2,3,4,5,6,7} d.{11,12 ,13,14,15,16,17,18,19,20,21,22} b.{4,5,6,7,8,9} c {8,9,10,11,12,13,14 }