Consider the following graph: V2 V, ei ez Vz es es es Vs Vy 1. Please give a walk from vị to v4 that is not a trail. 2. Please give a path from Vị to V4. 3. Please give a closed walk from v4 to V4 that is not a circuit. 4. Please give a simple circuit from vi to v1.

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A: Sol

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Q: Q. Rrove 8 the Sum of valancies of vertices of a graph V is bwice Ahe nunber o f ealges

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A: The representation of the graph is

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Q: Which of the following graphs are bipartite? G G H E H E I K OA В I K H Y OC

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