Exercise 3.22. Let n?3 and m?2 be two integers. The simple plant location polytope is the convex hull of the points (x,y)?{0,1}m×n×{0,1}n satisfying ?j=1n?xij?=10?xij??yj??1?i=1,…,mi=1,…,m,j=1,…,n? (i) Find the dimension of the simple plant location polytope. (ii) Show that xij??0 defines a facet of the simple plant location polytope for all i=1,…,m and j=1,…,n. (iii) Show that yj??1 defines a facet of the simple plant location polytope for all j=1,…,n. (iv) Show that xij??yj? defines a facet of the simple plant location polytope for all i=1,…,m and j=1,…,n.