Which of the following graphs DOES NOT have an Eulerian circuit? (Recall that an Eulerian circuit in an undirected graph is a walk in the graph that starts at a vertex ans returns to the vertex after tracelling on each edge exactly once.) $K_{9, 9}$ $K_{8, 8}$ $K_{12, 12}$ $K_9$ The graph $G$ ... set $ E(G) = \{ \{i, j\} : 1 \leq i < j \leq 5 \: or \: 5 \leq i < j \leq 9 \}.$

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Dec 29, 2016
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jothee
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