• 28-01-2007 21:36
  • Просмотры: 55
Ответы ( 1 )
MAKSIM MIRONOV
+1
29-01-2007 00:14

(A B) / C = ({7, 11, 14, 23, 27} {6, 11, 15, 23, 26, 29}) / {11, 16, 25, 28, 36} = {11, 23} / {11, 16, 25, 28, 36} = {23}