program esep4;
var
x,y:real;
begin
if (x=< 0.1) and (x<0.9) then y:=sqr(sin(x));
if (x=1.3) then y:=cos(x) else y:=-x;
writeln('y=',y);
end.
var
x,y:real;
begin
if (x=< 0.1) and (x<0.9) then y:=sqr(sin(x));
if (x=1.3) then y:=cos(x) else y:=-x;
writeln('y=',y);
end.