91.4 Problem number 147

\[ \int \frac {\coth ^4(c+d x)}{a+b \text {sech}^2(c+d x)} \, dx \]

Optimal antiderivative \[ \frac {x}{a}-\frac {b^{\frac {5}{2}} \arctanh \left (\frac {\sqrt {b}\, \tanh \left (d x +c \right )}{\sqrt {a +b}}\right )}{a \left (a +b \right )^{\frac {5}{2}} d}-\frac {\left (a +2 b \right ) \coth \left (d x +c \right )}{\left (a +b \right )^{2} d}-\frac {\coth ^{3}\left (d x +c \right )}{3 \left (a +b \right ) d} \]

command

integrate(coth(d*x+c)^4/(a+b*sech(d*x+c)^2),x, algorithm="giac")

Giac 1.9.0-11 via sagemath 9.6 output

\[ -\frac {\frac {3 \, b^{3} \arctan \left (\frac {a e^{\left (2 \, d x + 2 \, c\right )} + a + 2 \, b}{2 \, \sqrt {-a b - b^{2}}}\right )}{{\left (a^{3} + 2 \, a^{2} b + a b^{2}\right )} \sqrt {-a b - b^{2}}} - \frac {3 \, {\left (d x + c\right )}}{a} + \frac {2 \, {\left (6 \, a e^{\left (4 \, d x + 4 \, c\right )} + 9 \, b e^{\left (4 \, d x + 4 \, c\right )} - 6 \, a e^{\left (2 \, d x + 2 \, c\right )} - 12 \, b e^{\left (2 \, d x + 2 \, c\right )} + 4 \, a + 7 \, b\right )}}{{\left (a^{2} + 2 \, a b + b^{2}\right )} {\left (e^{\left (2 \, d x + 2 \, c\right )} - 1\right )}^{3}}}{3 \, d} \]

Giac 1.7.0 via sagemath 9.3 output

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