( u − 1 ) ( v − 1 ) ( v 4 − 5 v 3 + 9 v 2 − 5 v + 1 ) u v 5 / 2 {\displaystyle {\frac {(u-1)(v-1)\left(v^{4}-5v^{3}+9v^{2}-5v+1\right)}{{\sqrt {u}}v^{5/2}}}}
