Question

What is the 8th term of the geometric sequence with this explicit formula?
an= 6.(-2)(n-1)

Answer 1

The answer is -768.

Answer 2

- 768

Explanation:

Substitute n = 8 into the explicit formula, that is

`a_(8)` = 6 ×
`(-2)^(7)` = 6 × - 128 = - 768