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3.7 O cos ) cos(8-x) cos - cos 3

3.7 O cos ) cos(8-x) cos - cos 3

Trigonometry (11th Edition)
Trigonometry (11th Edition)
11th Edition
ISBN:9780134217437
Author:Margaret L. Lial, John Hornsby, David I. Schneider, Callie Daniels
Publisher:Margaret L. Lial, John Hornsby, David I. Schneider, Callie Daniels
Chapter1: Trigonometric Functions
Section: Chapter Questions
Problem 1RE: 1. Give the measures of the complement and the supplement of an angle measuring 35°.
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**Problem 4. Simplify each expression.** (a) \( \cos\left(\frac{3\pi}{2} - \theta\right) \) (b) \( \cos(\theta - \pi) \) (c) \( \cos\left(\frac{\pi}{3} - \theta\right) - \cos\left(\frac{\pi}{3} + \theta\right) \)
Transcribed Image Text:**Problem 4. Simplify each expression.** (a) \( \cos\left(\frac{3\pi}{2} - \theta\right) \) (b) \( \cos(\theta - \pi) \) (c) \( \cos\left(\frac{\pi}{3} - \theta\right) - \cos\left(\frac{\pi}{3} + \theta\right) \)
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