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question 1 find three new planar drawings of the right-hand graph of figure 112 what are the face sizes for each
question 1 find two different planar drawings of the left-hand graph of figure each of which has a face of size 6 how
question use the results of the previous problem to generalize the statements and proofs of theorems i and iitheorem i
question 1 compute the thickness of k332 compute the thickness of the petersen graph3 give an example of a 4-regular
question generalize theorem slightly prove that every simple planar connected graph g has at least three vertices of
question 1 might the graph in figure be planar2 the goal of this problem is to use eulers formula to list all possible
question 1 write a story proof of eulers formula involving ducks2 prove that the graph shown in figure is non-planar3
question 1 prove that if g has 11 vertices and is simple then g and gmacr cannot both be planar2 can you find a graph
question 1 draw six different graphs each with a different number of vertices check to see whether each graph has an
question 1 conjecture a necessary condition for a graph to have an euler circuit ie if a graph has an euler circuit
question find a minimum-weight spanning tree of the graph given in example first use any method you like then do it
question 1 now suppose that the information given in the previous problem is listed in preference order ie the book the
question 1 consider the mini-sudoku puzzle of figure 1024 in which each row column and quadrant needs to contain the
question 1 make a standard drawing of k33 do you think there is a different drawing of k33 with no edges crossing2 is
question after example we examine the case of a class on the reality of ducks below are listed the students and the
question 1 show that a graph is connected if and only if it has a spanning tree2 how many different binary search trees
question 1 try to draw k4 twice once with at least two edges crossing and once with no edges crossing can you do it2
question 1 list at least eight spanning trees and their corresponding total weights for the graph in figure how many
question 1 we claimed that the column-position list 32562718 had two coins on the same diagonal which two and why2 why
question 1 list at least two criteria that when present prevent a tree from having a perfect matching2 does every
question 1 which matchings in figure are perfect matchings2 find a perfect matching for each graph in figure or explain
question create a binary decision tree that determines which of the current us coins penny nickel dime quarter
question 1 placing baa at the root draw a binary search tree for the micro-dictionary aaa ab baa baba2 what kind of
question in example what principle allows us to conclude that two nodes must represent the same personexample of an
question 1 if an edge-weighted graph has several edges of the same weight there will be more than one way to order the