Ekspresi 3: 1 half "x" plus 1 half "y" left brace, left brace, 0 less than "x" less than 2 , right brace 0 less than "y" less than 2 , right brace12x+12y0<x<20<y<2
3
Ekspresi 4: left parenthesis, 1 plus "t" , 1 , 1 plus 1 half "t" , right parenthesis1+t,1,1+12t
4
Ekspresi 5: left parenthesis, 1 , 1 plus "t" , 1 plus 1 half "t" , right parenthesis1,1+t,1+12t