ISI-SAMPLE-2014-17 closed

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$\int_{1}^{2001}\frac{1}{1000+X}$=1.097 thus C

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@tesla , but integral gives continuous summation..

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I think this is not the correct way of writing summation..if  you write this way then there will be no difference between sigma and integral..

https://www.khanacademy.org/math/ap-calculus-ab/ab-accumulation-riemann-sums/ab-defining-definite-integral/v/writing-riemann-sum-limit-as-definite-integral