10. Write a program to find the sum of following series 1-X1/1!+X2/2!- ............Xn/n!.

 SOURCE CODE:


#include <stdio.h>
#include<math.h>

int fac(int n)
{  if(n==0 || n==1)
    return 1;
   else return n*fac(n-1);
}

int main()
{   int i,n,x;
    float sum=1,c;
    printf("enter the value of x and n\n");
    scanf("%d %d",&x,&n);
    for(i=1;i<=n;i++)
    {  c=(pow(-x,i)/fac(i));
       sum+=c;
    }
    printf("value of given series is %f",sum);
    return 0;
}


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