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Black Book Advanced Problems in MathematicsMathematicsContinuity and Differentiability

The number of points at which the function, f(x) = cases |x|, x^2 & ; if x (- , 1) 2x - 1, x^2 & ; otherwise cases is not differentiable is :

Options

  1. A0
  2. B1
  3. C2
  4. D3

Correct answer

B. 1

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