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If  (x) =  x sin 2 e (Cos x sin 2x – sin x) dx and  (0) = 1, then         3 is equal to

1. 4 3 e 2 1 
2. 4 3 e 2 1
3. 4 3 e 
4. 4 3 e

Correct answer: 4 3 e 2 1

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