
Concept explainers
The Sawtooth Curve An oscilloscope often displays a sawtooth curve. This curve can be approximated by sinusoidal curves of varying periods and amplitudes.
(a) Use a graphing utility to graph the following function, which can be used to approximate the sawtooth curve.(a) Use a graphing utility to graph the following function, which can be used to approximate the sawtooth curve.
(b) A better approximation to the sawtooth curve is given by
Use a graphing utility to graph this function for and compare the result to the graph obtained in part (a).
(c) A third and even better approximation to the sawtooth curve is given by
Use a graphing utility to graph this function for and compare the result t

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Chapter 8 Solutions
Precalculus
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