Question

C++ Help: Write one single function that can mutliply either 2, 3, or 4 numbers and returns the product double res1 = multiply(1.2, 3.4); double res2 = multiply(1.2, 3.4, 5.8); double res3 = multiply(1.2, 3.4, 5.8, 4.7);

Answer 1

Please find the code below:::

#include<iostream>
using namespace std;

double multiply(double a,double b,double c=1, double d=1){
   return a*b*c*d;
}

int main()
{
   cout<<"multiply(1.2, 3.4) : "<<multiply(1.2, 3.4)<<endl;
   cout<<"multiply(1.2, 3.4, 5.8) : "<<multiply(1.2, 3.4, 5.8)<<endl;
   cout<<"multiply(1.2, 3.4, 5.8, 4.7) : "<<multiply(1.2, 3.4, 5.8, 4.7)<<endl;

   return 0;
}

output: