2.99 See Answer

Question: The function f (x) = sin (x + sin

The function f (x) = sin (x + sin 2x), 0 < x < π, arises in applications to frequency modulation (FM) synthesis.
(a). Use a graph of f produced by a graphing device to make a rough sketch of the graph of f'.
(b). Calculate f (x) and use this expression, with a graphing device, to graph f'. Compare with your sketch in part (a).