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JEE Main PAPER - 1

JEE Main · 2018

180 questions · One at a time

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143
MCQ4 marks

Let S={t∈R:f(x)=∣x−π∣⋅(e∣x∣−1)sin⁡∣x∣ is not differentiable at t}S = \{t \in \mathbf{R} : f(x) = |x - \pi| \cdot (e^{|x|} - 1) \sin |x| \text{ is not differentiable at } t \}  . Then the set S is equal to:

  • A.\{\pi\}
  • B.\{0, \pi\}
  • C.\phi \text{ (an empty set)}Correct
  • D.\{0\}
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