Question: Consider the function f(x)=|x|. Prove that this function is not differentiable at the point x=0. (HINT: You may want to think about limits from the

Consider the function f(x)=|x|. Prove that this function is not differentiable at the point x=0. (HINT: You may want to think about limits from the left and right in the definition of the derivative.)

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