67.10 Problem number 10

\[ \int \frac {1}{\sqrt {b \tan ^3(e+f x)}} \, dx \]

Optimal antiderivative \[ -\frac {2 \tan \left (f x +e \right )}{f \sqrt {b \left (\tan ^{3}\left (f x +e \right )\right )}}-\frac {\arctan \left (-1+\sqrt {2}\, \left (\sqrt {\tan }\left (f x +e \right )\right )\right ) \left (\tan ^{\frac {3}{2}}\left (f x +e \right )\right ) \sqrt {2}}{2 f \sqrt {b \left (\tan ^{3}\left (f x +e \right )\right )}}-\frac {\arctan \left (1+\sqrt {2}\, \left (\sqrt {\tan }\left (f x +e \right )\right )\right ) \left (\tan ^{\frac {3}{2}}\left (f x +e \right )\right ) \sqrt {2}}{2 f \sqrt {b \left (\tan ^{3}\left (f x +e \right )\right )}}-\frac {\ln \left (1-\sqrt {2}\, \left (\sqrt {\tan }\left (f x +e \right )\right )+\tan \left (f x +e \right )\right ) \left (\tan ^{\frac {3}{2}}\left (f x +e \right )\right ) \sqrt {2}}{4 f \sqrt {b \left (\tan ^{3}\left (f x +e \right )\right )}}+\frac {\ln \left (1+\sqrt {2}\, \left (\sqrt {\tan }\left (f x +e \right )\right )+\tan \left (f x +e \right )\right ) \left (\tan ^{\frac {3}{2}}\left (f x +e \right )\right ) \sqrt {2}}{4 f \sqrt {b \left (\tan ^{3}\left (f x +e \right )\right )}} \]

command

integrate(1/(b*tan(f*x+e)^3)^(1/2),x, algorithm="giac")

Giac 1.9.0-11 via sagemath 9.6 output

\[ -\frac {1}{4} \, b^{2} {\left (\frac {2 \, \sqrt {2} {\left | b \right |}^{\frac {3}{2}} \arctan \left (\frac {\sqrt {2} {\left (\sqrt {2} \sqrt {{\left | b \right |}} + 2 \, \sqrt {b \tan \left (f x + e\right )}\right )}}{2 \, \sqrt {{\left | b \right |}}}\right )}{b^{4} f \mathrm {sgn}\left (\tan \left (f x + e\right )\right )} + \frac {2 \, \sqrt {2} {\left | b \right |}^{\frac {3}{2}} \arctan \left (-\frac {\sqrt {2} {\left (\sqrt {2} \sqrt {{\left | b \right |}} - 2 \, \sqrt {b \tan \left (f x + e\right )}\right )}}{2 \, \sqrt {{\left | b \right |}}}\right )}{b^{4} f \mathrm {sgn}\left (\tan \left (f x + e\right )\right )} - \frac {\sqrt {2} {\left | b \right |}^{\frac {3}{2}} \log \left (b \tan \left (f x + e\right ) + \sqrt {2} \sqrt {b \tan \left (f x + e\right )} \sqrt {{\left | b \right |}} + {\left | b \right |}\right )}{b^{4} f \mathrm {sgn}\left (\tan \left (f x + e\right )\right )} + \frac {\sqrt {2} {\left | b \right |}^{\frac {3}{2}} \log \left (b \tan \left (f x + e\right ) - \sqrt {2} \sqrt {b \tan \left (f x + e\right )} \sqrt {{\left | b \right |}} + {\left | b \right |}\right )}{b^{4} f \mathrm {sgn}\left (\tan \left (f x + e\right )\right )} + \frac {8}{\sqrt {b \tan \left (f x + e\right )} b^{2} f \mathrm {sgn}\left (\tan \left (f x + e\right )\right )}\right )} \]

Giac 1.7.0 via sagemath 9.3 output

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