A tree with exactly two vertices of degree 1 must be a path.
Chapter 23, PROBLEM SET 23.4 #17
A tree with exactly two vertices of degree 1 must be a path.
This problem has been solved!
Do you need an answer to a question different from the above? Ask your question!
Related Book For 
PROBLEM SET 23.2:
PROBLEM SET 23.4:
PROBLEM SET 23.5:
PROBLEM SET 23.6:
PROBLEM SET 23.7:
PROBLEM SET 23.8: