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    Question

    F={PR`` ST, PSU`` QR} which of the following is trivial

    functional dependency in F closure?
    A PR→ST Correct Answer Incorrect Answer
    B PR→S Correct Answer Incorrect Answer
    C PR→RT Correct Answer Incorrect Answer
    D PSU→Q Correct Answer Incorrect Answer
    E Both 2 and 3 Correct Answer Incorrect Answer

    Solution

    For trivial dependency RHS should be a subset of LHS. This hold true only for PR`->` S

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