\[ \int \sqrt {e \cos (c+d x)} (a+a \sin (c+d x))^{5/2} \, dx \]
Optimal antiderivative \[ -\frac {a \left (e \cos \left (d x +c \right )\right )^{\frac {3}{2}} \left (a +a \sin \left (d x +c \right )\right )^{\frac {3}{2}}}{3 d e}-\frac {15 a^{3} \left (e \cos \left (d x +c \right )\right )^{\frac {3}{2}}}{8 d e \sqrt {a +a \sin \left (d x +c \right )}}-\frac {3 a^{2} \left (e \cos \left (d x +c \right )\right )^{\frac {3}{2}} \sqrt {a +a \sin \left (d x +c \right )}}{4 d e}+\frac {15 a^{2} \arcsinh \left (\frac {\sqrt {e \cos \left (d x +c \right )}}{\sqrt {e}}\right ) \sqrt {e}\, \sqrt {1+\cos \left (d x +c \right )}\, \sqrt {a +a \sin \left (d x +c \right )}}{8 d \left (1+\cos \left (d x +c \right )+\sin \left (d x +c \right )\right )}+\frac {15 a^{2} \arctan \left (\frac {\sin \left (d x +c \right ) \sqrt {e}}{\sqrt {e \cos \left (d x +c \right )}\, \sqrt {1+\cos \left (d x +c \right )}}\right ) \sqrt {e}\, \sqrt {1+\cos \left (d x +c \right )}\, \sqrt {a +a \sin \left (d x +c \right )}}{8 d \left (1+\cos \left (d x +c \right )+\sin \left (d x +c \right )\right )} \]
command
integrate((a+a*sin(d*x+c))^(5/2)*(e*cos(d*x+c))^(1/2),x, algorithm="fricas")
Fricas 1.3.8 (sbcl 2.2.11.debian) via sagemath 9.6 output
\[ \text {output too large to display} \]
Fricas 1.3.7 via sagemath 9.3 output \[ \text {Timed out} \]