Question: Let s suppose, a relation R = ( A , B , C , D , E , F ) with a set of functional

Lets suppose, a relation R =(A, B, C, D, E, F) with a set of functional dependencies F: (A -> B, BC -> D, EF -> A, F -> E) is given. Relation R is decomposed into R1(A, B, C, D) and R2(A, E, F). Find out whether the decomposition is lossless or not, and whether it is dependency preserving or not (show why or why not).

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