Show that the sequence `t_(n)` defined by `t_(n)=5n+4` is AP, also find its common difference.

Explanation

To show that the sequence \( t_n \) defined by \( t_n = 5n + 4 \) is an arithmetic progression (AP) and to find its common difference, we can follow these steps:

### Step 1: Define the sequence
The given sequence is defined as:
\[ t_n = 5n + 4 \]

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