Question: [4] Let Gx be the complete graph on k vertices, with one edge deleted. How many ways can we properly color the vertices of Gx

[4] Let Gx be the complete graph on k vertices, with

[4] Let Gx be the complete graph on k vertices, with one edge deleted. How many ways can we properly color the vertices of Gx using at most n colors? (For a proper coloring, adjacent vertices have distinct colors.) XI

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