Answer
False.
Work Step by Step
False. $tan(2\theta)+tan(2\theta)=2tan(2\theta)\ne tan(4\theta)$ for many $\theta$ values.
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 6.6 Double-angle and Half-angle Formulas - 6.6 Assess Your Understanding - Page 518: 6
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