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. (20 points) Let S1 = {Tom, James, Mary, Helen), and S2 = { walking, running, racing) (a) Find the Cartesian product of S1 and

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. (20 points) Let S1 = {Tom, James, Mary, Helen), and S2 = { walking, running, racing) (a) Find the Cartesian product of S1 and S2 (b) Create one relation with S1 and S2 as domains. Describe the relation

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