Question

If the first and second terms of a geometric sequence are 3 and 12, what is

the expression for the value of the 24th term of the sequence?

Answer 1

`3(4)^(23)`

Explanation:

Let the first term be
`a` and the common ratio be
`r`.

We know
`a=3` and
`ar=12`, meaning
`r=4`.

This means the 24th term is
`3(4)^(23)`.