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JEE Main2004MathematicsLimitsActual

_ n _ r=1 ^n 1 n e^ - n is

Options

  1. Ae
  2. Be-1
  3. C1-e
  4. De+1

Correct answer

B. e-1

Step-by-step solution

_ n _ r=1 ^n 1 n e^ r n = ₀^1 e^x d x=(e-1)

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