18.2 Problem number 191

\[ \int \frac {\sin (a+b x)}{(d \cos (a+b x))^{5/2}} \, dx \]

Optimal antiderivative \[ \frac {2}{3 b d \left (d \cos \! \left (b x +a \right )\right )^{\frac {3}{2}}} \]

command

integrate(sin(b*x+a)/(d*cos(b*x+a))^(5/2),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

\[ \frac {2}{3 \, \sqrt {d \cos \left (b x + a\right )} b d^{2} \cos \left (b x + a\right )} \]