76.77 Problem number 354

\[ \int \frac {\cot ^3(e+f x)}{\left (a+b \sec ^2(e+f x)\right )^2} \, dx \]

Optimal antiderivative \[ -\frac {b^{3}}{2 a^{2} \left (a +b \right )^{2} f \left (b +a \left (\cos ^{2}\left (f x +e \right )\right )\right )}-\frac {\csc ^{2}\left (f x +e \right )}{2 \left (a +b \right )^{2} f}-\frac {b^{2} \left (3 a +b \right ) \ln \left (b +a \left (\cos ^{2}\left (f x +e \right )\right )\right )}{2 a^{2} \left (a +b \right )^{3} f}-\frac {\left (a +3 b \right ) \ln \left (\sin \left (f x +e \right )\right )}{\left (a +b \right )^{3} f} \]

command

integrate(cot(f*x+e)^3/(a+b*sec(f*x+e)^2)^2,x, algorithm="giac")

Giac 1.9.0-11 via sagemath 9.6 output

\[ \text {output too large to display} \]

Giac 1.7.0 via sagemath 9.3 output \[ \text {Exception raised: NotImplementedError} \]_______________________________________________________