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1.3 {25 points] Write relational algebra expressions to answer all of the queries above. You may use assignment to intermediate relations to make your expressions

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1.3 {25 points] Write relational algebra expressions to answer all of the queries above. You may use assignment to intermediate relations to make your expressions clearer. Students in 600.315 should answer queries f, h, m, z, tt. Students in 600.415 should answer queries f, h, m, z, tt, hh, kk, k, g

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