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a. You are given the following relational schema: R(A,B,C,D,E) with the following set F of functional dependencies Is AC a superkey for R? Show all

a. You are given the following relational schema: R(A,B,C,D,E) with the following set F of functional dependencies Is AC a superkey for R? Show all your workings and explain clearly how you arrived at your final answer 4 marks)

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