Home Maths Functions, Limits, Continuity and Differentiability Differentiability If then f is
Maths Functions, Limits, Continuity and Differentiability Differentiability Single Correct MCQ
Published on: August 12, 2026

If then f is

A
Discontinuous at
B
Not differentiable
C
Differentiable at
D
Continuous but not differentiable at

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Verified by Experts
The correct answer is:
D

Hence f is continuous at

Now

. Hence f is not differentiable at .

Trick : Can be seen by graph it is continuous but tangent is not defined at .

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