program sc;
const a=pi/4;
b=pi/2;
h=pi/60;
var x,fx:real;
begin x:=a;
writeln(' x y');
while x<=b do
begin fx:=sin(x)+0.5*cos(x);
writeln('f(',x:4:2,')=',fx:4:2);
x:=x+h;
end;
end.
program sc;
const a=pi/4;
b=pi/2;
h=pi/60;
var x,fx:real;
begin x:=a;
writeln(' x y');
while x<=b do
begin fx:=sin(x)+0.5*cos(x);
writeln('f(',x:4:2,')=',fx:4:2);
x:=x+h;
end;
end.