${\displaystyle \underset{n=1}{\overset{}{}}}{a}_n={\displaystyle \underset{n=1}{\overset{}{}}}\frac{ln(n)}{8n^2}$

Let $f(x)=\frac{ln(x)}{8x^2}.$ Find $f^{\text{'}}(x).$

$($Express numbers in exact form. Use symbolic notation and fractions where needed.$)$

$f^{\text{'}}(x)=$

Evaluate ${\displaystyle \underset{2}{\overset{}{}}}\frac{ln(x)}{8x^2}dx.$

$($Express numbers in exact form. Use symbolic notation and fractions where needed.$)$

${\displaystyle \underset{2}{\overset{}{}}}\frac{ln(x)}{8x^2}dx=$