Published by:
CGP EDU Academic Team
Published on: August 13, 2026
Let 
. If the number of points at which 
is not differentiable in 
is 
, then 
A
B
6
C
3
D
2
Text Solution
Verified by ExpertsThe correct answer is:
C
The bold curve in the above figure is the graph of 
. From figure, it is clear that 
is periodic. 
has 3 sharp edge between 0 to 
.
is not differentiable at 3 points between 0 to 
. i.e. 
No. of points at which 
is differentiable in 
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