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CGP EDU Academic Team
Published on: August 13, 2026
If f(x) = p | sin x| + qe |x| + r|x| 3 and if f(x) is differentiable at x = 0, then
Text Solution
Verified by ExpertsThe correct answer is:
B
It can be seen f ′ (0 – ) = –p –q and f ′ (0 + ) = p + q. Therefore, for f to be differentiable at x = 0, we must have p + q = 0.
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