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Discrete Mathematics A tree contains 1 vertex of degree 2, 1 vertex of degree 3, 1...

Discrete Mathematics
A tree contains 1 vertex of degree 2, 1 vertex of degree 3, 1 vertex of degree 4, 11 leaves and the remaining vertices have degree 3.
Find the total number of vertices.
Sketch two non-isomorphic trees statisfying the above mentioned conditions.

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