Draw the plane direct and reciprocal lattice for (a) an oblique lattice with parameters a = 8 nm, b = 12 nm, = 120o; (b) a rectangular centered lattice with parameters a = 10 nm, b = 14 nm; (c) the rectangular lattice in (b) drawn as a primitive lattice. Confirm that the reciprocal lattices in (b) and (c) are identical and rectangular centered