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The domain of f(x) = ) 3 x 2 ( e ) 2 x ( log x log 2 ) 1 x ( e     , x   R is

1. R – { - 1, 3}
2. ( – 1,  ) – {3}
3. R – {3}
4. (2,  ) – {3}

Correct answer: (2,  ) – {3}

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