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