$[0\mathrm{.}52/1\mathrm{.}04$ Points$]$

SCALCET$9$

Find the radius of convergence, $R,$ of the series.

${\displaystyle \underset{n=2}{\overset{}{}}}\frac{(x+7{)}^n}{7^{n}ln(n)}$

$R=$

Find the interval, I, of convergence of the series. $($Enter your answer

$I=$

$$