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