Geometric Progression: x, xr, xr3, xr4, --- are said to be in geometric progression. Here, a is first term and r is common ratio.
a) nth term = xr (n -1)
| b) Sum of n terms = | x (1 – rn) | , here r < 1 |
| (1 – r) |
| c) Sum of n terms = | x (rn – 1) | , here r > 1 |
(r – 1)
|
