If `|[ vec(a).vec(a) vec(a).vec(b) vec(a).vec(c)], [vec(a).vec(b) vec(b).vec(b) vec(b).vec(c)],[ vec(a).vec(c) vec(b).vec(c) vec(c).vec(c)] |=144` then the volume of tetrahedron formed with coterminous edges `bar(a) bar(b) and bar(c)` is equal to