Var a, b, c: real;
begin
readln(a, b);
c := sqrt(sqr(a) + sqr(b));
writeln('sin a = ', b / c);
writeln('cos a = ', a / c);
writeln('tg a = ', b / a);
writeln('ctg a = ', a / b);
writeln();
writeln('sin b = ', a / c);
writeln('cos b = ', b / c);
writeln('tg b = ', a / b);
writeln('ctg b = ', b / a);
end.
Вот так)) Удачи тебе)