75.119 Problem number 212

\[ \int \frac {\sec (e+f x) (c+d \sec (e+f x))^2}{a+a \sec (e+f x)} \, dx \]

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

command

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

Giac 1.9.0-11 via sagemath 9.6 output

\[ \frac {\frac {{\left (2 \, c d - d^{2}\right )} \log \left ({\left | \tan \left (\frac {1}{2} \, f x + \frac {1}{2} \, e\right ) + 1 \right |}\right )}{a} - \frac {{\left (2 \, c d - d^{2}\right )} \log \left ({\left | \tan \left (\frac {1}{2} \, f x + \frac {1}{2} \, e\right ) - 1 \right |}\right )}{a} - \frac {2 \, d^{2} \tan \left (\frac {1}{2} \, f x + \frac {1}{2} \, e\right )}{{\left (\tan \left (\frac {1}{2} \, f x + \frac {1}{2} \, e\right )^{2} - 1\right )} a} + \frac {c^{2} \tan \left (\frac {1}{2} \, f x + \frac {1}{2} \, e\right ) - 2 \, c d \tan \left (\frac {1}{2} \, f x + \frac {1}{2} \, e\right ) + d^{2} \tan \left (\frac {1}{2} \, f x + \frac {1}{2} \, e\right )}{a}}{f} \]

Giac 1.7.0 via sagemath 9.3 output

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