Discrete math: Planar Graphs 14. Give a careful proof that the graph below is not planar.▼ Hint.The girth of the graph is 4.15. Explain why we cannot use the same sort of proof we did in Exercise 2.3.14to prove that the graph below is not planar. Then explain how you know thegraph is not planar anyway.▼ Hint.What has happened to the girth? Careful: we have a different number of edgesas well. Better check Euler's formula.

14.Proof:Let H be the given graph.For a general graph G, the girth of G is the length of the…

Answered: 14. Give a careful proof that the graph…

Advanced Engineering Mathematics

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ISBN:9780470458365

Author:Erwin Kreyszig

Publisher:Erwin Kreyszig

Chapter2: Second-order Linear Odes

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14. Give a careful proof that the graph below is not planar. ▼ Hint. The girth of the graph is 4. 15. Explain why we cannot use the same sort of proof we did in Exercise 2.3.14 to prove that the graph below is not planar. Then explain how you know the graph is not planar anyway.