Problem:
Evaluate the function $f(x)=-\tan ^{-1}\left(\frac{13 x^2}{2}+4\right)$ at the point $x=-5$
Answer:
$-\tan ^{-1}\left(\frac{333}{2}\right) = -1.565$
{'source': 'AMPS', 'file': 'amps/mathematica/algebra/function_evaluation/13751.txt'}