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a) Find an optimal vertex cover for the following graph. b) Using the 2-approximation algorithm that we learned in the lecture, find an approximate

a) Find an optimal vertex cover for the following graph. b) Using the 2-approximation algorithm that we learned in the lecture, find an approximate vertex cover for the following graph. Draw every steps when you include an edge in the solution. Using the size of the optimal vertex cover from question (a) above, calculate your approximation ratio. b h e d

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