Answer to Question #33171 in C++ for Sanjiv

Question

write a program to find the sum of following series:- 1+x^2/3!+x^3/4!+x^4/5!+............+x^n/(n+1)!

Answer 1

#include <iostream>
#include <conio.h>
#include <math.h>
using namespace std;
//find factorial
double factorial(long n){
if (n < 1)
return 0;
double product = 1;
for (int i = 1; i <= n; i++)
product *= i;
return product;//return result
}
//main function
int main()
{
double x;//variable for x
int sum=1;//variable for sum
cout<<"Enter x: ";//enter x
cin>>x;//read x
for(int i=2;i<1000;i++){
sum+=pow(x,i)/(factorial(i+2));//find sum
}
//show result
cout<<"Sum = "<<sum;
getch();//delay
return 0;
}