To find the value of Sine function using power series

The program

#include<stdio.h>

int main()

{

 int i, n;

 float x,deg, sum=1, t=1;

printf("-:SINE POWER SERIES:- \n\n\n");

printf("ENTER THE VALUE OF x OF sin(x) SERIES: ");

scanf("%f",&x);

printf("ENTER THE LIMIT UPTO WHICH YOU WANT TO EXPAND THE SERIES: ");

scanf("%d",&n);

 deg=x;

 x=x*3.14159/180;

 t=x;

 sum=x;

 for(i=1;i<=n;i++)

 {

 t=t*(-1)*x*x/(2*i*(2*i+1));

 sum=sum+t;

 } 

printf("\n THE VALUE OF Sin(%f) is : %.4f \n",deg, sum);

}