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