Fundamentholfundamenthol
JEE Main2019Math
Q.

Let f : R R be differentiable at c R and f(c) = 0. If g(x) = |f(x)|, then at x = c, g is : 

  1. A

    not differentiable if f'(c) = 0

  2. B

    differentiable if f'(c) = 0 

  3. C

    not differentiable 

  4. D

    differentiable if f'(c) 0 

Solution

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