Răspuns:
Explicație:
#include <iostream>
#include<math.h>
#include <iomanip>
using namespace std;
int n=5, i, s = 0, p = 1, v[100];
double maritmetica, mgeometrica, marmonica;
int main ()
{
for (i=1;i<=n;i++)
{
cout <<"v["<<i<<"]=";
cin >>v[i];
s = s+v[i];
p = p*v[i];
}
maritmetica = s/n;
mgeometrica = sqrt(p);
marmonica = (2*p)/s;
cout << fixed << setprecision(3) <<maritmetica<<endl;
cout << fixed<<setprecision(3)<<mgeometrica<<endl;
cout << fixed<<setprecision(3)<<marmonica<<endl;
}