A forest is a graph that is _________, and a tree is a graph that is ________.
A forest is a graph that is _____, and a tree is a graph that is _____.
We know that:
A graph is said to be circuit-free If, and only if, it has no circuits.
A graph is calleda tree If, and only if, it is circuit-free and connected.
A trivial tree Is a graph thatconsists of a single vertex...
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