Single Variable Calculus: Early Transcendentals, Volume I
Single Variable Calculus: Early Transcendentals, Volume I
8th Edition
ISBN: 9781305270343
Author: James Stewart
Publisher: Cengage Learning
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Chapter H, Problem 47E
To determine

To express: The trigonometric functions cos3θ and sin3θ in terms of cosθ and sinθ by the use of De Moivre’s Theorem with n=3.

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