Question: A graph is regular if each node has the same degree. Prove that if a complete bipartite graph K (m,n) is regular, then m =

A graph is regular if each node has the same degree.

Prove that if a complete bipartite graph K (m,n) is regular, then m = n.

Could you please detail the explanation to get a grasp on the subject, since I don't really understand the question.

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