− ( w − 1 ) ( x − 1 ) ( u v x 2 − u v x + u v − u x 2 + 2 u x − 2 u − 2 v x 2 + 2 v x − v + x 2 − x + 1 ) u v w x 3 / 2 {\displaystyle -{\frac {(w-1)(x-1)\left(uvx^{2}-uvx+uv-ux^{2}+2ux-2u-2vx^{2}+2vx-v+x^{2}-x+1\right)}{{\sqrt {u}}{\sqrt {v}}{\sqrt {w}}x^{3/2}}}}
