Problem:
Find the second derivative of the following function:
$\tan (5-4 x)+\cosh (\pi -i \log (5))$
Answer:
$32 \tan (5-4 x) \sec ^2(5-4 x)$
{'source': 'AMPS', 'file': 'amps/mathematica/calculus/second_derivatives/43276.txt'}