− u 3 v 4 − 3 u 3 v 3 + 3 u 3 v 2 + u 2 v 5 − 5 u 2 v 4 + 12 u 2 v 3 − 11 u 2 v 2 + 4 u 2 v + 4 u v 4 − 11 u v 3 + 12 u v 2 − 5 u v + u + 3 v 3 − 3 v 2 + v u 3 / 2 v 5 / 2 {\displaystyle -{\frac {u^{3}v^{4}-3u^{3}v^{3}+3u^{3}v^{2}+u^{2}v^{5}-5u^{2}v^{4}+12u^{2}v^{3}-11u^{2}v^{2}+4u^{2}v+4uv^{4}-11uv^{3}+12uv^{2}-5uv+u+3v^{3}-3v^{2}+v}{u^{3/2}v^{5/2}}}}