Trigonometry (11th Edition) Clone

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

Chapter 2 - Acute Angles and Right Triangles - Section 2.1 Trigonometric Functions of Acute Angles - 2.1 Exercises - Page 53: 2

Answer

$\cos 45^{\circ}$ = $\frac{\sqrt 2}{2}$

Work Step by Step

Standard angle formula ($\cos 45^{\circ}$ = $\frac{\sqrt 2}{2}$)
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