\[ \int \frac {A+C \sec ^2(c+d x)}{\sqrt {\sec (c+d x)} (a+a \sec (c+d x))^{5/2}} \, dx \]
Optimal antiderivative \[ -\frac {5 \left (15 A -C \right ) \arctanh \left (\frac {\sin \left (d x +c \right ) \sqrt {a}\, \left (\sqrt {\sec }\left (d x +c \right )\right ) \sqrt {2}}{2 \sqrt {a +a \sec \left (d x +c \right )}}\right ) \sqrt {2}}{32 a^{\frac {5}{2}} d}-\frac {\left (A +C \right ) \sin \left (d x +c \right ) \left (\sqrt {\sec }\left (d x +c \right )\right )}{4 d \left (a +a \sec \left (d x +c \right )\right )^{\frac {5}{2}}}-\frac {\left (13 A -3 C \right ) \sin \left (d x +c \right ) \left (\sqrt {\sec }\left (d x +c \right )\right )}{16 a d \left (a +a \sec \left (d x +c \right )\right )^{\frac {3}{2}}}+\frac {\left (49 A +C \right ) \sin \left (d x +c \right ) \left (\sqrt {\sec }\left (d x +c \right )\right )}{16 a^{2} d \sqrt {a +a \sec \left (d x +c \right )}} \]
command
integrate((A+C*sec(d*x+c)^2)/(a+a*sec(d*x+c))^(5/2)/sec(d*x+c)^(1/2),x, algorithm="maxima")
Maxima 5.46 SBCL 2.0.1.debian via sagemath 9.6 output
\[ \text {output too large to display} \]
Maxima 5.44 via sagemath 9.3 output \[ \text {Timed out} \]_____________________________________________________