program zaloopa;
uses math;
const
a = -5.2;
b = 4.83;
c = 2;
var x: real;
begin
x:=8.15;
write('x = ',x:0:2,'  f = ');
writeln(sqrt(abs(a+b*power(x,3)))+c:0:5);
x:=-1.5;
write('x = ',x:0:1,'  f = ');
writeln(exp(a*sin(x)):0:5);
x:=2.2;
write('x = ',x:0:1,'  f = ');
writeln(a*ln(abs(b+c/(2*x))):0:5);
end.