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please explain step by step! QI Condoren ABCD.D. the following functional dependencies med to hold over R ARC HD (What is a key of these

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QI Condoren ABCD.D. the following functional dependencies med to hold over R ARC HD (What is a key of these multiple candidate keys it all Anctional dependencies, other than the set given that are unranteed to hold hased on different inference rules at the inference role you are we Decompose into INF Do we know if the relation is in NF? Explain

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