Question

B(n)=1(−2)^n-1

What is the fourth term in the sequence?

Answer 1

-8

Explanation:

If you want to find the fourth term in the sequence, or b(4), then you just plug in the value 4 for n, resulting in

b(4)=1(-2)^(4-1).

Simplifying, we get

b(4)=1(-2)^3

=1(-2*-2*-2)

=1(-8)

=-8