( t ( 2 ) − 1 ) ( t ( 3 ) − 1 ) ( t ( 3 ) 2 − t ( 1 ) ) t ( 1 ) t ( 2 ) t ( 3 ) 3 / 2 {\displaystyle {\frac {(t(2)-1)(t(3)-1)\left(t(3)^{2}-t(1)\right)}{{\sqrt {t(1)}}{\sqrt {t(2)}}t(3)^{3/2}}}}
