Question

How to write a c++ coding for the output
3
3 9
3 9 27
3 9 27 81
i need code plz help.....

Answer 1

Answer:

#include <iostream>

#include <math.h>

using namespace std;

int main()

{

   for(int i=1;i<=4;i++)

   {

       for(int j=1;j<=i;j++)

       {

           cout<<pow(3,j)<<" ";

       }

       cout<<"\n";

   }

   return 0;

}

Answer 2

Question:-

Write a c++ program to display the output:-

3

3 9

3 9 27

3 9 27 81

Logic used:-

3^1

3^1 3^2

3^1 3^2 3^3

and this will continue.

So, here is your program.

#include <iostream>

#include <math.h>

using namespace std;

int main()

{

int n=4;

for(int i=1;i<=n;i++)

{

for(int j=1;j<=i;j++)

{

cout <<pow(3,j)<<" ";

}

cout<<"\n";

}

return 0;

}