Singo Oda
23/01/2012 • 22:19
x+y > 2y e x-y < x
2+1>2*1 e 2-1 < x
3 > 2 e 1 < 2
x = 2
y = 1
x > y > 0
2+1>2*1 e 2-1 < x
3 > 2 e 1 < 2
x = 2
y = 1
x > y > 0