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Program to find N-th term of series 0, 11, 28, 51, 79, 115, 156, 203, …In C++
In this problem, we are given a number N. Our task is to create a program to find N-th term of series 0, 11, 28, 51, 79, 115, 156, 203, … In C++.
Problem Description − To find the Nth terms of the series −
0, 11, 28, 51, 79, 115, 156, 203, … N-th term.
Let’s take an example to understand the problem,
Input − N = 5
Output − 79
Solution Approach:
The general formula for nth term of the series is −
Tn = 3*(N*N) + 2*N - 5
Program to illustrate the working of our solution,
#include <iostream>
using namespace std;
int findNTerm(int N) {
int nthTerm = ( (3*N*N) + 2*N - 5);
return nthTerm;
}
int main()
{
int N = 9;
cout<<N<<"th term of the series is "<<findNTerm(N);
return 0;
}Output:
9th term of the series is 256
Updated on: 03-Oct-2020
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