# Directed Graphs and Trees

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A. Is a directed graph weakly connected if there is a path from a to b and from b to a

whenever a and b are vertices in the graph?

b. If two trees have the same number of vertices and the same degrees, are the two trees

isomorphic?

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##### Solution Summary

Directed graphs and connectedness and isomorphic trees are discussed. The solution is concise.

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a. Is a directed graph weakly connected if there is a path from a to b and from b to a whenever a and b are vertices in the graph?

A graph is ...

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