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Question 11 5 pts The following are expressions in relational algebra about a relation Ra; b;c. S = Ps(a,b1,01)(R) T = SAR Q1: Ans =

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Question 11 5 pts The following are expressions in relational algebra about a relation Ra; b;c. S = Ps(a,b1,01)(R) T = SAR Q1: Ans = Tlp1,c(Op1=c(T)) Q2: Ans = Ttb,c(Ob=c(R)) d) Q1 and Q2 produce different answers. c) The answer to Q2 is always contained in the answer to 01. a) Q1 and Q2 produce the same answer b) The answer to Q1 is always contained in the answer to Q2

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