Answer:
The answer is 8
Step-by-step explanation:
From the question the formula for the sequence is
[tex]b(n) = 1 ({ - 2})^{n - 1} [/tex]
where
n is the nth term in the sequence
Since we are finding the 4th term n = 4
Substitute this value of n into the above formula
That's
[tex]b(4) = 1 ({ - 2})^{4 - 1} \\ = 1 ({ - 2})^{3} \\ = { - 2}^{3} [/tex]
We have the final answer as
8
Hope this helps you
