#include <stdio.h>

int main(void)
{
  /* variables declaration */
  long double x=0;
  long double sinval = 0,cosval = 0;
  int n,i,sinsign,cossign,denom;
  long double sinterm, costerm;

  /* Get input x in radians */
  printf("Please enter the real value x (in radians):");
  scanf("%Lf",&x);

  n=0; i=0;
  sinterm = 0;
  costerm = 0;
  sinsign=1;
  cossign=1;  

  while(n<10)
  {
   if (n%2 == 1)
   {
     sinterm = 1;
     denom=1;
     i=1;

     while (i<=n) { sinterm = sinterm*x; denom=denom*i; ++i;}

     sinval = sinval+(sinterm*sinsign/denom);
     sinsign=sinsign*(-1);
   }
   else
   {
     costerm = 1;
     denom=1;
     i=1;
     while (i<=n) { costerm = costerm*x; denom=denom*i; i++;} 

     cosval = cosval + costerm*cossign/denom;
     cossign=cossign*(-1);
   }
   n=n+1;
  }

  /* Print sin,cos values */
  printf("Approximately, Sin(%.2Lf) = %Lf, Cos(%.2Lf) = %Lf\n",x,sinval,x,cosval);

  return 0;
}