75.9 Problem number 13

\[ \int \sec (e+f x) (a+a \sec (e+f x))^2 (c-c \sec (e+f x))^2 \, dx \]

Optimal antiderivative \[ \frac {3 a^{2} c^{2} \arctanh \left (\sin \left (f x +e \right )\right )}{8 f}-\frac {3 a^{2} c^{2} \sec \left (f x +e \right ) \tan \left (f x +e \right )}{8 f}+\frac {a^{2} c^{2} \sec \left (f x +e \right ) \left (\tan ^{3}\left (f x +e \right )\right )}{4 f} \]

command

integrate(sec(f*x+e)*(a+a*sec(f*x+e))^2*(c-c*sec(f*x+e))^2,x, algorithm="giac")

Giac 1.9.0-11 via sagemath 9.6 output

\[ \frac {3 \, a^{2} c^{2} \log \left ({\left | \sin \left (f x + e\right ) + 1 \right |}\right ) - 3 \, a^{2} c^{2} \log \left ({\left | \sin \left (f x + e\right ) - 1 \right |}\right ) + \frac {2 \, {\left (5 \, a^{2} c^{2} \sin \left (f x + e\right )^{3} - 3 \, a^{2} c^{2} \sin \left (f x + e\right )\right )}}{{\left (\sin \left (f x + e\right )^{2} - 1\right )}^{2}}}{16 \, f} \]

Giac 1.7.0 via sagemath 9.3 output

\[ \text {Exception raised: NotImplementedError} \]________________________________________________________________________________________