12.40 Problem number 250

\[ \int \frac {1}{\sqrt {-1-x^2} \sqrt {2+3 x^2}} \, dx \]

Optimal antiderivative \[ \frac {\sqrt {\frac {1}{x^{2}+1}}\, \sqrt {x^{2}+1}\, \EllipticF \left (\frac {x}{\sqrt {x^{2}+1}}, \frac {i \sqrt {2}}{2}\right ) \sqrt {3 x^{2}+2}\, \sqrt {2}}{2 \sqrt {-x^{2}-1}\, \sqrt {\frac {3 x^{2}+2}{x^{2}+1}}} \]

command

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

Fricas 1.3.8 (sbcl 2.2.11.debian) via sagemath 9.6 output

\[ \frac {1}{2} i \, \sqrt {-2} {\rm ellipticF}\left (i \, x, \frac {3}{2}\right ) \]

Fricas 1.3.7 via sagemath 9.3 output

\[ {\rm integral}\left (-\frac {\sqrt {3 \, x^{2} + 2} \sqrt {-x^{2} - 1}}{3 \, x^{4} + 5 \, x^{2} + 2}, x\right ) \]