Let f (x) = a + b |x| + c |x| 4 , where a, b and c are real constants. Then f (x) is…
Mathematics · JEE Advanced · NTA Exams — Limit, Continuity and Differentiability
Let f (x) = a + b |x| + c |x|4, where a, b and c are real constants. Then f (x) is differentiable at x = 0 if
- a = 0
- b = 0
- c = 0
- None of these
Answer
(B) b = 0
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