Let ƒ(x) = 
Show that ƒ(x) is not derivable at x=0.
Given function f(x) = 
LHD at x = 0:
RHD at x = 0:
As, LHD ≠ RHD
Therefore,
f(x) is not differentiable at x = 0
1
Let ƒ(x) = Show that ƒ(x) is not derivable at x=0.
Given function f(x) =
LHD at x = 0:
RHD at x = 0:
As, LHD ≠ RHD
Therefore,
f(x) is not differentiable at x = 0