function y = Q5(x,k)
  
  s = 1;
  for i = 1:9
    f = roundk(x/(10-i), k);
    t = roundk(s * f, k);
    s = roundk(t + 1, k);
  end
 y = roundk(1/s, k);
 
 end
 
 %Result: Q5(5,4) = 0.006954