Please slove the code in c++,Don"t take from internet otherwise i will get zero.

Question

Write a recursive function that find the sum of the following series.

1 + 1/2 + 1/4 + 1/8 + ... + 1/2ⁿ

Answer 1

using namespace std;

#include <iostream>

#include <math.h>

void GeometricSeriesSum (double R, int nExpo, double * sum)

{

if (nExpo==0)

{

*sum=*sum+1;

}

else

{

*sum = *sum + pow(R,nExpo);

GeometricSeriesSum(R,nExpo-1,sum);

}

}

int main()

{

double sum=0;

double R = 1.0/3;

int nExpo=6;

GeometricSeriesSum(R,nExpo,&sum);

cout << sum << endl;

}