/*WAP to calculate sum of x-[x3/fact(3)]+[x5/fact(5)]...n terms*/
#include<stdio.h>
#include<conio.h>
void main()
{
int d=1,i,x,n,fact=1;
float s=0;
clrscr(); // clear screen.
printf("\nEnter value of x and n:");
scanf("%d%d",&x,&n);
for(i=1;i<=n*2-1;i++) // loop executes n+2 times
{
d=d*x; // find x,x^2,x^3...
fact=fact*i; // count factorial of i
if(i%2!=0)
s=s+(float)d/fact; //count sum only when i is odd
else
d=-d; // if even then d becomes -ve.
}
printf("The Sum of Series Is :%0.2f",s); // print result
getch();
}
