Use the figure below to estimate the indicated derivatives. If a derivative does not exist, enter dne in the answer blank. The graph of is black and has a sharp corner at . The graph of is blue.

graph of f and g.  f is shown in black and is piecewise linear, extending from (0,0) to (2,2) and then back to (4,0).  g is linear, extending from (0,2) to (4,0).

Let . Find


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