Reasoning
Arithmetic Progression: nth Term
Find any term of an arithmetic progression.
aₙ = a + (n - 1)d
Formula Explanation
Each term increases or decreases by the same common difference.
Variables Explained
aₙ = nth term; a = first term; n = term position; d = common difference.
Solved Example
Find the 10th term when a = 3 and d = 4.
a₁₀ = 3 + (10 - 1) × 4 = 39.