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SELECT X.A FROM X,Y,Z WHERE X.A = Y.A OR X.A =Z.A Answer the next two questions (Questions 8 and 9 ) based on the user

SELECT X.A FROM X,Y,Z WHERE X.A = Y.A OR X.A =Z.A Answer the next two questions (Questions 8 and 9 ) based on the user requirements. Question 8 Give the relational algebra term that this query would be compiled to

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