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Black Book Advanced Problems in MathematicsMathematicsLimits

The value of _ x 0 [ (1 - 2x)^n _ r=0 ^n ^nC_r ( x + x^2 1 - 2x )^r ]^ 1/x is :

Options

  1. Ae^n
  2. Be^ -n
  3. Ce^ 3n
  4. De^ -3n

Correct answer

B. e^ -n

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