∫ z 2 1 + z 3 3 d z ∫ t d t t 2 2 {\displaystyle {\begin{aligned}&\int {\cfrac {z^{2}}{\sqrt[{3}]{1+z^{3}}}}dz\\[2ex]&\int {tdt}&{\cfrac {t^{2}}{2}}\end{aligned}}}