The total number of points where the function `f(x)=|x+2|+|x-1|` is not differentiable is

The set of points where the function f(x)=|x-2| cos x is differentiable is

The set of points where the function f(x)=|x-1|e^(x) is differentiable, is

The set of points where the function f(x)=x|x| is differentiable is:

Find the number of points where the function f(x)=max|tanx|,cos|x|) is non-differentiable in the interval (-pi,pi) .

The set of points where the function f given by f(x)=|2x-1|sin x is differentiable is

The set of all points, where the function f (x) = x/(1+|x|) is differentiable, is

The set of points where the function f given by f(x) = |2x-1| sinx is differentiable is