Question

Write a program to find sum of the series

S = 1 + x + x² +..... + xⁿ

Answer 1

using namespace std;
#include
int main()
{
int sum=1,x,i,t,n;
cout<<“\nEnter N value”;
cin>>n;
cout<<“\nEnter x value … “;
cin>>x;
t=x;
for(i=l;i<=n;i++)
{
sum = sum + t;
t = t * x;
}
cout<<“SUM = “<<sum;
}
Output