If `n^(th)` term of an A.P. is (2n - 1), find its `7^(th)` term.

Answer

To find the 7th term of the arithmetic progression (A.P.) where the nth term is given by the formula \( a_n = 2n - 1 \), we can follow these steps:

### Step-by-Step Solution:

1. **Identify the nth term formula**:
The nth term of the A.P. is given as:
\[ a_n = 2n - 1 \]

2. **Substitute n = 7 into the formula**:
To find the 7th term, we substitute \( n = 7 \) into the formula:
\[ a_7 = 2(7) - 1 \]

3. **Calculate the value**:
Now, we perform the calculation:
\[ a_7 = 14 - 1 \]
\[ a_7 = 13 \]

4. **Conclusion**:
Therefore, the 7th term of the A.P. is:
\[ a_7 = 13 \]