Question: Let G = (V,E) be an undirected graph and let A,BCV. Show that a) N(AUB) = N(A) UN(B). b) N(AnB) CN(A)nN(B). Show an example of

Let G = (V,E) be an undirected graph and let A,BCV.

Let G = (V,E) be an undirected graph and let A,BCV. Show that a) N(AUB) = N(A) UN(B). b) N(AnB) CN(A)nN(B). Show an example of a graph and subsets of A and B where N(AnB) # N(A)NN(B)

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