Define differentiability of a function at a point.

Define continuity and differentiability of a function at a point verify the continuity and differentiability of the function: , f(x)={[(1-x),x 2])

Define differentiation.

Define differentiation.

Define continuity of a function at a point.

Define continuity of a function at a point.

Define a continuity of a function at a point. Find all the points of discontinuity of f defined by f(x) = |x| - |x - 1| .

Differentiation of Modulus function