How to points on a graph where the function is not differentiable

The video tutorial explains the concept of non-differentiability in functions. It highlights that functions are not differentiable at points where they are not continuous, have vertical tangents, or have corners. Examples include the cube root function, which has a vertical tangent, and specific points like X = 0, 2, and 4 where the function G of X is not differentiable.

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