Solve using Discrete Math graph theory. Prove that a connected undirected graph in which every node has exactly degree 2 is a cycle. (Hint: use induction on the number of vertices.)

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A: ∫02(6-x2) dxReimann sum islimn->∞∑i=1n△x·f(a+i△x)△x=b-an=2-0n=2n   We know that f(x)=6-x^2…

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Q: Discrete math. Graph Theory

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A: As per the description we have to solve the given problem without using any graphs.

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Q: In a simple undirected graph with 8 vertices and 27 edges, how many vertices can have degree 7?

A: Vertices=8Edges=27

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