## Intermediate Algebra (6th Edition)

$a_n=2\left( \dfrac{1}{5} \right)^n$
The terms are the powers of $\dfrac{1}{5}$ multiplied by 2. Hence, a possible general term is \begin{array}{l}\require{cancel} a_n=2\left( \dfrac{1}{5} \right)^n .\end{array}