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September 17, 2020 4:05 pm 20 pts
eye ys are F,E, AB.C AD BD ED ie. 4 FD .7 What is key of R ? Let R {A, B, C, D, E, F} be a relation CFEA EC D A-8 (A) CD (B) EC (C) AE (D)AC s. (B) (CD) = {C, D, F} (EC) {E, C, A, D, B, F} e com So, EC is the key Option (B) oncy there is a related and important concept of nomalization
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