Precalculus: Mathematics for Calculus, 7th Edition

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

Chapter 7 - Section 7.1 - Trigonometric Identities - 7.1 Exercises - Page 542: 1

Answer

all 1

Work Step by Step

An equation is called an identity if it is valid for values of the variable. The equation $2x=x + x$ is an algebraic identity, and the equation $sin^{2}x + cos^{2}x = 1$ is a trigonometric identity.
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