− u v 5 − 2 u v 4 + 3 u v 3 − 2 u v 2 + 2 u v − u − v 5 + 2 v 4 − 2 v 3 + 3 v 2 − 2 v + 1 u v 5 / 2 {\displaystyle -{\frac {uv^{5}-2uv^{4}+3uv^{3}-2uv^{2}+2uv-u-v^{5}+2v^{4}-2v^{3}+3v^{2}-2v+1}{{\sqrt {u}}v^{5/2}}}}
