24.270 Problem number 1706

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

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

command

Integrate[(2 + x^2)/(x*(2 - 2*x + x^2)*(1 - x + x^2)^(1/3)),x]

Mathematica 13.1 output

\[ -\sqrt {3} \text {ArcTan}\left (\frac {2-2 x+\sqrt [3]{1-x+x^2}}{\sqrt {3} \sqrt [3]{1-x+x^2}}\right )+\log \left (-1+x+\sqrt [3]{1-x+x^2}\right )-\frac {1}{2} \log \left (1-2 x+x^2-(-1+x) \sqrt [3]{1-x+x^2}+\left (1-x+x^2\right )^{2/3}\right ) \]

Mathematica 12.3 output

\[ \int \frac {2+x^2}{x \left (2-2 x+x^2\right ) \sqrt [3]{1-x+x^2}} \, dx \]________________________________________________________________________________________