Answer
True
Work Step by Step
Consider the trigonometry identity:
$\sin^2 \theta+\cos^2 \ \theta=1$
Subtract $\cos^2 \ \theta$ from both sides to obtain:
$\sin^2 \theta=1-\cos^2 \theta $
Therefore, the given statement is True.
Precalculus: Concepts Through Functions, A Unit Circle Approach to Trigonometry (3rd Edition)
by Sullivan III, Michael
Published by
Pearson
ISBN 10:
0-32193-104-1
ISBN 13:
978-0-32193-104-7
Chapter 6 - Analytic Trigonometry - Section 6.4 Trigonometric Identities - 6.4 Assess Your Understanding - Page 496: 1
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