14.297 Problem number 2421

\[ \int \frac {1}{x \sqrt {-4+12 x-9 x^2}} \, dx \]

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

command

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

Giac 1.9.0-11 via sagemath 9.6 output

\[ \frac {i \, \log \left ({\left | 3 \, x - 2 \right |}\right )}{2 \, \mathrm {sgn}\left (-3 \, x + 2\right )} - \frac {i \, \log \left ({\left | x \right |}\right )}{2 \, \mathrm {sgn}\left (-3 \, x + 2\right )} \]

Giac 1.7.0 via sagemath 9.3 output

\[ \mathit {undef} \]________________________________________________________________________________________