Trigonometry (10th Edition)

Published by Pearson
ISBN 10: 0321671775
ISBN 13: 978-0-32167-177-6

Chapter 2 - Acute Angles and Right Triangles - Section 2.1 Trigonometric Functions of Acute Angles - 2.1 Exercises: 73

Answer

$45^{\circ}$

Work Step by Step

$sin 45^{\circ} = cos 45 ^{\circ}= \frac{1}{\sqrt 2}\approx0.707$ Coordinates on unit circle will be $(0.707, 0.707)$.
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