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anonymous

  • one year ago

Plz check this for me

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  1. anonymous
    • one year ago
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  2. anonymous
    • one year ago
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    My Question in image plz

  3. ganeshie8
    • one year ago
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    Degree of a vertex is the number of incident edges. Notice that the degree of each vertex in the new graph is \(4\) : |dw:1438553486134:dw|

  4. anonymous
    • one year ago
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    what will be answer?

  5. ganeshie8
    • one year ago
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    Since there are \(45\) vertices, the sum of degrees is \(4\cdot 45 = 180\)

  6. anonymous
    • one year ago
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    The sum of the degrees is 4 · = , so the number of edges is , by Theorem 2.6

  7. anonymous
    • one year ago
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    and number of edges?

  8. ganeshie8
    • one year ago
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    Are you looking for just answer and not really willing to learn ?

  9. anonymous
    • one year ago
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    no i want to understand also, I am trying to follow u

  10. ganeshie8
    • one year ago
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    good, then look up in ur textbook and tell me what that theorem2.6 is about

  11. anonymous
    • one year ago
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    okay

  12. anonymous
    • one year ago
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    here is theorem

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  13. ganeshie8
    • one year ago
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    That theorem says, sum of degrees = \(2|E|\) \[180=2|E| \implies |E| = 90\]

  14. anonymous
    • one year ago
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    hmmmm

  15. ganeshie8
    • one year ago
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    Btw, \(E\) is the set of edges. \(|E|\) is a symbol that represents the number of elements in the set \(E\)

  16. anonymous
    • one year ago
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    so it is like 4.45=180 and90

  17. ganeshie8
    • one year ago
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    Yep!

  18. anonymous
    • one year ago
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    thank you... :)

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