Published by:
CGP EDU Academic Team
Published on: August 12, 2026
The function 
is continuous for any x but it is not differentiable at
A
only
B
only
C
is an integer) only
D
and 
is an integer)
Text Solution
Verified by ExpertsThe correct answer is:
D
It can be easily seen from the graph of 
that it is every where continuous but not differentiable at integer multiples of 
and at 
.
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