Question: Given R = (A,B,C), let r1 and r2 be relations defined over R. Write the equivalent expressions for the following using multiple relational analysis (TRC).

Given R = (A,B,C), let r1 and r2 be relations defined over R. Write the equivalent expressions for the following using multiple relational analysis (TRC).

a) r1 Given R = (A,B,C), let r1 and r2 be relations defined over r2

b) r1 r2

c) R. Write the equivalent expressions for the following using multiple relational analysis A,B (r1) (TRC). a) r1r2 b) r1 r2 c) A,B (r1) B,C (r2) B,C (r2)

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