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4 ∫ ⎟ ⎟ ⎠ ⎞ ⎜ ⎜ ⎝ ⎛ + + + 1 0 2 2 x 1 x 3 1 dx – 3log e

1. is equal to :
2. 2 + 2 – log e (1 + 2 )
3. 2 – 2 – log e (1 + 2 )
4. 2 + 2 + log e (1 + 2 ) (4) 2 – 2 + log e (1 + 2 )

Correct answer: 2 – 2 – log e (1 + 2 )

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