Which of following functions differentiable at x = 0?
Mathematics · JEE Advanced · NTA Exams — Limit, Continuity and Differentiability
Which of following functions differentiable at x = 0?
- cos (|x|) + |x|
- cos(|x|) –|x|
- sin(|x|) +|x|
- sin(|x|) –|x|
Answer
(B) cos(| x |) –| x |
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