Precalculus: Mathematics for Calculus, 7th Edition

Published by Brooks Cole
ISBN 10: 1305071751
ISBN 13: 978-1-30507-175-9

Chapter 5 - Section 5.2 - Trigonometric Functions of Real Numbers - 5.2 Exercises - Page 417: 9

Answer

a. -$\sqrt 2$/2 b. -$\sqrt 2$/2 c. $\sqrt 2$/2

Work Step by Step

Check unit circle for values
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