Question -
Answer -
The given function f is
It isknown that a function f is differentiable at a point x = c inits domain if both.
are finite and equal.
Tocheck the differentiability of the given function at x = 1,consider the left hand limit of f at x = 1
Sincethe left and right hand limits of f at x = 1are not equal, f is not differentiable at
x = 1
Tocheck the differentiability of the given function at x = 2,consider the left hand limit
of f at x =2
Sincethe left and right hand limits of f at x = 2are not equal, f is not differentiable at x =2