C++ Program to calculate (a + b)^3. | C++ Program to calculate 'a' plus 'b' hole cube. | C ++ प्रोग्राम 'a' plus 'b' पूरे क्यूब की गणना करने के लिए।

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C++ Program to calculate (a + b)³.

Let see the program to calculate (a + b)³..

Example:

To calculate (a + b)3.
Formula: (a + b)3 = a3 + 3*a2*b + 3*a*b2 + b3 or
(a + b)3 = a3 + b3 + 3*a*b(a + b)
Input a=1,b=2
(a + b)3 =16

#include <iostream>

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

Output:

 Enter a value :1
 Enter b value :2

 Result (a + b)^3 = :27

#include <iostream>

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

Output:

 Enter a value :2
 Enter b value :3

 Result (a + b)^3 = :125

/* C++ Program to calculate (a+b)3 using pow() function. */
#include <iostream>

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

Output:

 Enter a value :3
 Enter b value :4

 Result (a + b)^3 = :343

/* C++ Program to calculate (a+b)3 using pow() function. */
#include <iostream>

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

Output:

 Enter a value :4
 Enter b value :5

 Result (a + b)^3 = :729

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