\[ \int \frac {(c+d \sec (e+f x))^4}{a+b \cos (e+f x)} \, dx \]
Optimal antiderivative \[ \frac {d^{3} \left (4 a c -b d \right ) \arctanh \left (\sin \left (f x +e \right )\right )}{2 a^{2} f}+\frac {d \left (2 a c -b d \right ) \left (2 a^{2} c^{2}-2 a b c d +b^{2} d^{2}\right ) \arctanh \left (\sin \left (f x +e \right )\right )}{a^{4} f}+\frac {2 \left (a c -b d \right )^{4} \arctan \left (\frac {\sqrt {a -b}\, \tan \left (\frac {f x}{2}+\frac {e}{2}\right )}{\sqrt {a +b}}\right )}{a^{4} f \sqrt {a -b}\, \sqrt {a +b}}+\frac {d^{4} \tan \left (f x +e \right )}{a f}+\frac {d^{2} \left (6 a^{2} c^{2}-4 a b c d +b^{2} d^{2}\right ) \tan \left (f x +e \right )}{a^{3} f}+\frac {d^{3} \left (4 a c -b d \right ) \sec \left (f x +e \right ) \tan \left (f x +e \right )}{2 a^{2} f}+\frac {d^{4} \left (\tan ^{3}\left (f x +e \right )\right )}{3 a f} \]
command
integrate((c+d*sec(f*x+e))^4/(a+b*cos(f*x+e)),x, algorithm="giac")
Giac 1.9.0-11 via sagemath 9.6 output
\[ \frac {\frac {3 \, {\left (8 \, a^{3} c^{3} d - 12 \, a^{2} b c^{2} d^{2} + 4 \, a^{3} c d^{3} + 8 \, a b^{2} c d^{3} - a^{2} b d^{4} - 2 \, b^{3} d^{4}\right )} \log \left ({\left | \tan \left (\frac {1}{2} \, f x + \frac {1}{2} \, e\right ) + 1 \right |}\right )}{a^{4}} - \frac {3 \, {\left (8 \, a^{3} c^{3} d - 12 \, a^{2} b c^{2} d^{2} + 4 \, a^{3} c d^{3} + 8 \, a b^{2} c d^{3} - a^{2} b d^{4} - 2 \, b^{3} d^{4}\right )} \log \left ({\left | \tan \left (\frac {1}{2} \, f x + \frac {1}{2} \, e\right ) - 1 \right |}\right )}{a^{4}} - \frac {12 \, {\left (a^{4} c^{4} - 4 \, a^{3} b c^{3} d + 6 \, a^{2} b^{2} c^{2} d^{2} - 4 \, a b^{3} c d^{3} + b^{4} d^{4}\right )} {\left (\pi \left \lfloor \frac {f x + e}{2 \, \pi } + \frac {1}{2} \right \rfloor \mathrm {sgn}\left (-2 \, a + 2 \, b\right ) + \arctan \left (-\frac {a \tan \left (\frac {1}{2} \, f x + \frac {1}{2} \, e\right ) - b \tan \left (\frac {1}{2} \, f x + \frac {1}{2} \, e\right )}{\sqrt {a^{2} - b^{2}}}\right )\right )}}{\sqrt {a^{2} - b^{2}} a^{4}} - \frac {2 \, {\left (36 \, a^{2} c^{2} d^{2} \tan \left (\frac {1}{2} \, f x + \frac {1}{2} \, e\right )^{5} - 12 \, a^{2} c d^{3} \tan \left (\frac {1}{2} \, f x + \frac {1}{2} \, e\right )^{5} - 24 \, a b c d^{3} \tan \left (\frac {1}{2} \, f x + \frac {1}{2} \, e\right )^{5} + 6 \, a^{2} d^{4} \tan \left (\frac {1}{2} \, f x + \frac {1}{2} \, e\right )^{5} + 3 \, a b d^{4} \tan \left (\frac {1}{2} \, f x + \frac {1}{2} \, e\right )^{5} + 6 \, b^{2} d^{4} \tan \left (\frac {1}{2} \, f x + \frac {1}{2} \, e\right )^{5} - 72 \, a^{2} c^{2} d^{2} \tan \left (\frac {1}{2} \, f x + \frac {1}{2} \, e\right )^{3} + 48 \, a b c d^{3} \tan \left (\frac {1}{2} \, f x + \frac {1}{2} \, e\right )^{3} - 4 \, a^{2} d^{4} \tan \left (\frac {1}{2} \, f x + \frac {1}{2} \, e\right )^{3} - 12 \, b^{2} d^{4} \tan \left (\frac {1}{2} \, f x + \frac {1}{2} \, e\right )^{3} + 36 \, a^{2} c^{2} d^{2} \tan \left (\frac {1}{2} \, f x + \frac {1}{2} \, e\right ) + 12 \, a^{2} c d^{3} \tan \left (\frac {1}{2} \, f x + \frac {1}{2} \, e\right ) - 24 \, a b c d^{3} \tan \left (\frac {1}{2} \, f x + \frac {1}{2} \, e\right ) + 6 \, a^{2} d^{4} \tan \left (\frac {1}{2} \, f x + \frac {1}{2} \, e\right ) - 3 \, a b d^{4} \tan \left (\frac {1}{2} \, f x + \frac {1}{2} \, e\right ) + 6 \, b^{2} d^{4} \tan \left (\frac {1}{2} \, f x + \frac {1}{2} \, e\right )\right )}}{{\left (\tan \left (\frac {1}{2} \, f x + \frac {1}{2} \, e\right )^{2} - 1\right )}^{3} a^{3}}}{6 \, f} \]
Giac 1.7.0 via sagemath 9.3 output
\[ \text {Exception raised: NotImplementedError} \]________________________________________________________________________________________