Program to find sum of the series “1+x+x^2+x^3+…………..+x^n”.

source code:

#include<iostream>
#include<conio.h>
#include<iomanip>
#include<math.h>

using namespace std;
int main()
{
    int x,n,i=0;
    long int sum=0;
    cout<<"Enter base and power :  ";
    cin>>x>>n;cout<<endl;
    for(i=1;i<=n;i++)
    {
        sum=sum+(pow(x,i));
    }
    cout<<sum;
    getch();
    return 0;
}