38.42 Problem number 778

\[ \int \frac {e^{\coth ^{-1}(a x)}}{\left (c-\frac {c}{a^2 x^2}\right )^3} \, dx \]

Optimal antiderivative \[ -\frac {6}{5 a \,c^{3} \left (1-\frac {1}{a x}\right )^{\frac {5}{2}} \left (1+\frac {1}{a x}\right )^{\frac {3}{2}}}-\frac {29}{15 a \,c^{3} \left (1-\frac {1}{a x}\right )^{\frac {3}{2}} \left (1+\frac {1}{a x}\right )^{\frac {3}{2}}}+\frac {x}{c^{3} \left (1-\frac {1}{a x}\right )^{\frac {5}{2}} \left (1+\frac {1}{a x}\right )^{\frac {3}{2}}}+\frac {\arctanh \! \left (\sqrt {1-\frac {1}{a x}}\, \sqrt {1+\frac {1}{a x}}\right )}{a \,c^{3}}-\frac {34}{5 a \,c^{3} \left (1+\frac {1}{a x}\right )^{\frac {3}{2}} \sqrt {1-\frac {1}{a x}}}+\frac {21 \sqrt {1-\frac {1}{a x}}}{5 a \,c^{3} \left (1+\frac {1}{a x}\right )^{\frac {3}{2}}}+\frac {16 \sqrt {1-\frac {1}{a x}}}{5 a \,c^{3} \sqrt {1+\frac {1}{a x}}} \]

command

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

Giac 1.9.0-11 via sagemath 9.6 output

\[ \text {could not integrate} \]

Giac 1.7.0 via sagemath 9.3 output

\[ \frac {1}{240} \, a {\left (\frac {240 \, \log \left (\sqrt {\frac {a x - 1}{a x + 1}} + 1\right )}{a^{2} c^{3}} - \frac {240 \, \log \left ({\left | \sqrt {\frac {a x - 1}{a x + 1}} - 1 \right |}\right )}{a^{2} c^{3}} - \frac {{\left (a x + 1\right )}^{2} {\left (\frac {40 \, {\left (a x - 1\right )}}{a x + 1} + \frac {450 \, {\left (a x - 1\right )}^{2}}{{\left (a x + 1\right )}^{2}} + 3\right )}}{{\left (a x - 1\right )}^{2} a^{2} c^{3} \sqrt {\frac {a x - 1}{a x + 1}}} - \frac {480 \, \sqrt {\frac {a x - 1}{a x + 1}}}{a^{2} c^{3} {\left (\frac {a x - 1}{a x + 1} - 1\right )}} + \frac {5 \, {\left (\frac {{\left (a x - 1\right )} a^{4} c^{6} \sqrt {\frac {a x - 1}{a x + 1}}}{a x + 1} + 24 \, a^{4} c^{6} \sqrt {\frac {a x - 1}{a x + 1}}\right )}}{a^{6} c^{9}}\right )} \]