Trigonometry (11th Edition) Clone

Published by Pearson
ISBN 10: 978-0-13-421743-7
ISBN 13: 978-0-13421-743-7

Chapter 6 - Review Exercises - Page 291: 25



Work Step by Step

RECALL: Since cosine and arccosine are inverse functions of each other, then, for all valid values of $x$, $\arccos{(\cos(x))}=x$ Thus, $\arccos{(\cos{(\frac{3\pi}{4})})}=\frac{3\pi}{4}$
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