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