Arithmetic Sequence nth Term

The nth term of an arithmetic sequence is calculated using the formula: An = A1 + (n - 1) * d, where An represents the nth term of the sequence, A1 is the first term, n is the position of the term in the sequence, and d is the common difference between terms. This formula is derived from the pattern that each term is the previous term plus a constant difference. Arithmetic sequences are used in various fields such as economics, computer science, and physics, to model linearly varying quantities.