Precalculus (6th Edition)

by Lial, Margaret L.; Hornsby, John; Schneider, David I.; Daniels, Callie

Published by Pearson

ISBN 10: 013421742X

ISBN 13: 978-0-13421-742-0

Chapter 6 - The Circular Functions and Their Graphs - 6.3 Graphs of the Sine and Cosine Functions - 6.3 Exercises - Page 601: 3

Answer

$n\pi$

Work Step by Step

As can be seen from the graph of a sine function, it crosses the x-axis for all numbers of the form $n\pi$ where $n$ is an integer.

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