Problem:
Differentiate the following function:
$-\log \left(8-\frac{19 x^4}{3}\right)+\log (\log (9)+i \pi )$
Answer:
$\frac{76 x^3}{24-19 x^4}$
{'source': 'AMPS', 'file': 'amps/mathematica/calculus/derivatives/26585.txt'}