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If ) 2 ( y then , 1 ) 1 ( y , 0 y , x , 0 1 2 ) 1 2 ( 2 dx dy x y y x = > = − − + − is equal to :

1. 2 + log 2 3
2. 2 + log 3 2
3. 2 – log 3 2
4. 2 – log 2 3

Correct answer: 2 – log 2 3

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