C++ Program to calculate a^3 – b^3.| C++ Program to calculate 'a' cube minus 'b' cube. | C ++ 'a' क्यूब माइनस 'b' क्यूब की गणना करने का प्रोग्राम।

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C++ Program to calculate a³ – b³.

Let see the program to calculate a³ – b³.

Example:

To calculate a3 – b3.
Formula: a3 – b3 = (a – b)(a2 + ab + b2) 
Input a=1,b=2
a3 – b3 =-7

#include <iostream>

using namespace std;
int main(void)
{
    int a,b,result;
    cout<<"Enter a value :";
    cin>>a;
    cout<<"Enter b value :";
    cin>>b;
    result=(a*a + a*b + b*b)*(a-b) ;
    cout<<" Result a^3 - b^3 = :"<<result<<endl;
    return 0;
}

Output:

 Enter a value :2
 Enter b value :3

 Result a^3 - b^3 = :-19

/* C++ Program to calculate a3-b3 using pow() function. */
#include <iostream>

using namespace std;
#include <math.h>
int main(void)
{
    int a,b,result;
    cout<<"Enter a value :";
    cin>>a;
    cout<<"Enter b value :";
    cin>>b;
    result=(pow(a,2) + a*b + pow(b,2))*(a-b) ;
    cout<<" Result a^3 - b^3 = :"<<result<<endl;
    return 0;
}

Output:

 Enter a value :7
 Enter b value :5

 Result a^3 - b^3 = :218

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