Find the sum of 10 terms of the G.P. 3, 6, 12,...

Explanation

`a = 3`

`r = 2`

Sum of n terms `S_n = (a(r^n−1))/(r−1)`

`S_(10) = (a(r^(10)−1))/(r−1)`

`=(3(2^(10)−1))/(2−1)`

`= (1024 - 1) × 3`

`= 1023 × 3`

`= 3069`