ex 1 pag 2
a) x _> (mai mare sau egal) 3
x={3,4,5,6,7....infinit}
b)x<-2
x={-3, -4, -5, -6, - infinit, 0,1,2,3,4...+ infinit}
c)x<6
x={ -infinit, 0,1,2,3,4,5}
d) x>4,5
x={6,7,8,9 .... + infinit}
e) -1<_ (mai mic sau egal) x < 3
x={-1,0,1,2}
f)10 > x > 4
x={9,8,7,6,5}
g)-2 <_ (mai mic sau egal) x <_ 5
x={-2, -2, 0 ,1,2,3,4,5}
h)0<x<7
x={1,2,3,4,5,6}
