Вираз 2: "f" left parenthesis, "x" , right parenthesis equals "f" Subscript, 1 , Baseline left parenthesis, "x" , right parenthesis left brace, negative 1 half less than or equal to "x" less than or equal to 1 half , right bracefx=f1x−12≤x≤12
2
Вираз 3: "y" squared plus "z" squared equals left parenthesis, "f" left parenthesis, "x" , right parenthesis , right parenthesis squared left brace, negative 1 half less than or equal to "x" less than or equal to 1 half , right bracey2+z2=fx2−12≤x≤12
3
Вираз 4: "x" equals left bracket, 1 half , negative 1 half , right bracket left brace, "y" squared plus "z" squared less than or equal to left parenthesis, "f" left parenthesis, 1 half , right parenthesis , right parenthesis squared , right bracex=12,−12y2+z2≤f122
