Question: Given F = { A - > B , BC - > D , C - > AD , D - > B } for

Given F={A->B, BC->D, C->AD, D->B} for R(A,B,C,D) Find A+, B+, C+ and D+ List all candidate keys of R List all super keys of R Given F={BC->A, A->D, AD->B, B->C} for R(A,B,C,D) Find A+, B+, C+ and D+ List all candidate keys of R List all super keys of R Given F={A->C, BC->A, D->B, BD->C, C->D} for R(A,B,C,D) Find A+, B+, C+ and D+ List all candidate keys of R List all super keys of R

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