I don't understand this calculus problem at all. can someone show me step by step?

Find all values of x for which the function is differentiable

what function ?

sorry heres the rest:

P(x)= sin(abs(x)) -1

The sine function will be have a point at x=0 which it cannot be differentiated, the slope is different on each side

To determine the values of x for which a given function is differentiable, you need to find the points of discontinuity, if any, in the function and then verify if the derivative exists at those points.

Let's go through the steps together. Can you provide the specific function you are working with?