Suppose that we decompose the schema R(A, B,C, D,E) into (A, B,C) and (A, D,E). Show that this decomposition is a lossless‐join decomposition if the following set F of functional dependencies holds: F = {A→BC, CD→E, B→D, E→A}.

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Our primary purpouse as electricians is to do wich of the following core concepts? a: install electrical components in a way they can be upgraded b: install electrical equiptment in a way that reduces heat c: install electrical systems in a safe manner d: only b and c