Find the sum to n terms of the A.P., whose `k^(t h)`term is `5k + 1`.

Explanation

To find the sum to n terms of the arithmetic progression (A.P.) whose k-th term is given by the formula \(5k + 1\), we can follow these steps:

### Step 1: Identify the first term (a)
The first term \(a_1\) can be found by substituting \(k = 1\) into the formula for the k-th term:
\[ a_1 = 5(1) + 1 = 5 + 1 = 6 \]

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