Question: Suppose the relation R 1 ( A , B ) and R 2 ( B , C , D ) have the following tuples:

Suppose the relation R1(A,B) and R2(B,C,D) have the following tuples:
\table[[A,B
Suppose the relation R1(A,B) and R2(B,C,D) have the following tuples: \table[[A,B

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