Question: (a) The complement G' of a simple graph G is the simple graph with vertex set V, two vertices being adjacent in G'3 if and

(a) The complement G' of a simple graph G is the simple graph with vertex set V, two vertices being adjacent in G'3 if and only if they are not adjacent in G. Describe the graphs K 5. and Kim (b) A simple graph G is self-complementary if G '=" G'. Show that if G is self-complementary, then v50, 1 (mod 4)

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