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Consider the following three tables, X1, X2 and X3: X1 A B C D x 100 tree aa 30 frog btb 45 lake ca X2

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Consider the following three tables, X1, X2 and X3: X1 A B C D x 100 tree aa 30 frog btb 45 lake ca X2 1 30 5 84 X3 X Y luke1 luck2 likes 3 lakes4 Show the results of the following relational algebra queries (5 points each): Q1.1.

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