Question: The complete bipartite graph K,m,n is the graph on m +n vertices {u1,..., Um, U1, -.., Un} where each u; is adjacent to each

The complete bipartite graph K,m,n is the graph on m +n vertices

The complete bipartite graph K,m,n is the graph on m +n vertices {u1,..., Um, U1, -.., Un} where each u; is adjacent to each v;. Hence Km.n has exactly mn edges. Show that K(Km,n) = m"-!nm-1

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