Arithmetic Progression (AP)
A sequence where each term increases by the same fixed amount.
Arithmetic Progression
A sequence where each term is obtained by adding a fixed number (the common difference, $d$) to the previous term.
nth Term
$$a_n = a + (n-1)d$$Sum of n Terms
$$S_n = \frac{n}{2}\left[2a + (n-1)d\right]$$Lesson 14 of 27