Question: Let f(x) = |x^2- 4| : (a) On the set of coordinate axes below, sketch the graph of f. Use the graph to nd points

Let f(x) = |x^2- 4| : (a) On the set of coordinate axes below, sketch the graph of f. Use the graph to nd points x = a at which f is not dierentiable. Separate your answers with a comma. Briey (with one sentence) justify your answer with graphical reasoning. Use the denition of the derivative to formula for f 0 (a) at all points x = a for which f is dierentiable. Express your answer using a piecewise dened function

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