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Black Book Advanced Problems in MathematicsMathematicsContinuity and Differentiability

If y = ⁻¹ ( x 1 + 1 - x^2 ), |x| 1 , then dy dx at ( 1 2 ) is :

Options

  1. A1 3
  2. B3
  3. C3 2
  4. D2 3

Correct answer

A. 1 3

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