Trigonometry 7th Edition

Published by Cengage Learning
ISBN 10: 1111826854
ISBN 13: 978-1-11182-685-7

Chapter 2 - Section 2.2 - Calculators and Trigonometric Functions of an Acute Angle - 2.2 Problem Set - Page 72: 80

Answer

$1$

Work Step by Step

By using a calculator: $\cos^285^\circ+\sin^285^\circ=1$
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