Result of important example of reciprocal lattices

A simple cubic lattice, a body centered cubic lattice, a face centered cubic lattice and a simple hexagonal lattice have a simple cubic lattice, a face centered cubic lattice, a body centered cubic lattice and another simple hexagonal lattice respectively as its reciprocal lattice. An if the volume of a primitive cell in the direct lattice is v, the volume of the primitive cell in the reciprocal lattice is 〖(2π)〗^3/v