23.6 Problem number 103

\[ \int \frac {1}{x \left (a^2+2 a b x^3+b^2 x^6\right )^{3/2}} \, dx \]

Optimal antiderivative \[ \frac {1}{3 a^{2} \sqrt {\left (b \,x^{3}+a \right )^{2}}}+\frac {1}{6 a \left (b \,x^{3}+a \right ) \sqrt {\left (b \,x^{3}+a \right )^{2}}}+\frac {\left (b \,x^{3}+a \right ) \ln \left (x \right )}{a^{3} \sqrt {\left (b \,x^{3}+a \right )^{2}}}-\frac {\left (b \,x^{3}+a \right ) \ln \left (b \,x^{3}+a \right )}{3 a^{3} \sqrt {\left (b \,x^{3}+a \right )^{2}}} \]

command

integrate(1/x/(b^2*x^6+2*a*b*x^3+a^2)^(3/2),x, algorithm="giac")

Giac 1.9.0-11 via sagemath 9.6 output

\[ -\frac {\log \left ({\left | b x^{3} + a \right |}\right )}{3 \, a^{3} \mathrm {sgn}\left (b x^{3} + a\right )} + \frac {\log \left ({\left | x \right |}\right )}{a^{3} \mathrm {sgn}\left (b x^{3} + a\right )} + \frac {3 \, b^{2} x^{6} + 8 \, a b x^{3} + 6 \, a^{2}}{6 \, {\left (b x^{3} + a\right )}^{2} a^{3} \mathrm {sgn}\left (b x^{3} + a\right )} \]

Giac 1.7.0 via sagemath 9.3 output

\[ \mathit {sage}_{0} x \]________________________________________________________________________________________