The series

${\displaystyle \underset{n=2}{\overset{}{}}}\frac{2^{3n}}{2^{2n-2}}$

is a geometric series$$

$$i$$What is its initial term $a$

$a=$

$$

$$

$$ii$$What is the common ratio $r$

$r=$

$$

$$

$$iii$$What is its sum $S$Input $333$ if the series is divergent$$

$S=$

$$