− 2 u v 4 + 2 u v 3 − 2 u v 2 + 2 u v − u − v 5 + 2 v 4 − 2 v 3 + 2 v 2 − 2 v u v 5 / 2 {\displaystyle {\frac {-2uv^{4}+2uv^{3}-2uv^{2}+2uv-u-v^{5}+2v^{4}-2v^{3}+2v^{2}-2v}{{\sqrt {u}}v^{5/2}}}}
