#include <iostream>
#include <cmath>
using namespace std;
int main() {
int x, y;
double n1, n2;
double sum =0.0;
double product= 1.0;
double sumResiprocal =0;
double arithm_M = 0;
double geom_M = 0;
double harmo_M = 0;
cout<<"Enter your first number :";
cin>> n1;
cout<<"Enter your second number :";
cin>>n2;
sum= n1+n2;
product = n1*n2;
sumResiprocal = 1.0/n1 + 1.0/n2;
arithm_M = sum/2.0;
geom_M = pow(product, 1.0/2.0);
harmo_M = 2/sumResiprocal;
cout<< "arithmetic mean is :" <<arithm_M<<endl;
cout<< "geometric mean is" <<geom_M<<endl;
cout<< "harmonic mean is" <<harmo_M<<endl;
return 0;
}
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