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Black Book Advanced Problems in MathematicsMathematicsContinuity and Differentiability

If f(x) = 1 + ⁻¹ x 1 - ⁻¹ x ; then f'(0) is equal to :

Options

  1. A4
  2. B3
  3. C2
  4. D1

Correct answer

D. 1

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