Geometric Series.

A geometric series is a series of the form

${\displaystyle \underset{n=1}{\overset{}{}}}a{r}^{n-1}=a+ar+a{r}^2+a{r}^3+$dots

For the following geometric series determine the value of a and $r.$ Then select the correct choices that follow.

${\displaystyle \underset{n=1}{\overset{}{}}}2(\frac{4}{3}{)}^n$

$a=,$ and $r=$

Since $|r|1,$ the series to