Geometric Progression (GP)
A sequence where each term is obtained by multiplying the previous term by a fixed ratio.
Geometric Progression
A sequence where each term is obtained by multiplying the previous term by a fixed number (the common ratio, $r$).
nth Term
$$a_n = ar^{n-1}$$Sum of n Terms
$$S_n = \frac{a(r^n - 1)}{r - 1}, \quad r \neq 1$$Lesson 15 of 27