Question

In a geometric sequence, A1 = 0.3 and r=3.Find A12, to the nearest integer

Answer 1

Explanation:

We have,

First terms of geometric sequence, a = 0.3

Common ratio, r = 3

It is required to find the 12th term of a GP. The formula of the nth term is given by :

`T_n=ar^(n-1)`

Here, n =12

So,

`T_(12)=0.3* 3^(12-1)\\\\T_(12)=0.3* 3^(11)\\\\T_(12)=53144.1`

or

`T_(12)=53144`

So, the 12th term of the GP is 53144.