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