Function y(x: real): real;
begin
if x < -1 then
y := 1 - 2 * x
else if x <= 2 then<br> y := 2 + x * x
else
y := abs(2 * x * x) + 1;
end;
function z(x, y: real): real;
begin
z := 2 * x / (48 - y * y) + 15 * sin(x);
end;
var
x: integer;
begin
for x := -10 to 10 do
writeln('x=',x, ' y=', y(x), ' z=', z(x, y(x)));
end.