If there are four tuples in a state of a relation R(A, B, C, D) and the tuplese ...
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If there are four tuples in a state of a relation R(A, B, C, D) and the tuplese are t1 = <a1, b1, c1, d1>, t2 = <a1, b1, c1, d2>, t3 = <a1, b2, c2, d1> and t4 = <a2, b1, c3, d1> then which of the following functional dependencies hold on the relation?