Let f(x)={(x−1)sin(1/(x−1)),if x != 10,if x=1} . Then which one of | Filo
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class 12

Math

Calculus

Continuity and Differentiability

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Let . Then which one of the following is true?

  1. is neither differentiable at and at
  2. is differentiable at but not at
  3. f is differentiable at but not at
  4. is differentiable at but not at
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