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 is equal to:

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JEE Mains Previous Paper 1 (Held On: 10 Apr 2019 Shift 1)
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Answer (Detailed Solution Below)

Option 1 :
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Detailed Solution

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Concept:

Calculation:

The series given in the question is:

Taking n(1/3) outside and cancelling the same in the denominator, we get

Now taking, 

The equation becomes integral,

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