y Find the exact value of arccos cos 2n Write your answer in radians in terms of . 2π DO Undefined X Л 0/0

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 Statement:**

Find the exact value of \( \arccos \left( \cos \frac{2\pi}{3} \right) \).

Write your answer in radians in terms of \( \pi \).

**Solution:**

The answer is \( \frac{2\pi}{3} \).

**Explanation:**

This problem involves determining the angle whose cosine is \( \cos \frac{2\pi}{3} \). Since the cosine function is periodic and arccos is its inverse over the range \( [0, \pi] \), the result is direct as \( \frac{2\pi}{3} \).

*Note: There are no graphs or diagrams in this image.*
Transcribed Image Text:**Problem Statement:** Find the exact value of \( \arccos \left( \cos \frac{2\pi}{3} \right) \). Write your answer in radians in terms of \( \pi \). **Solution:** The answer is \( \frac{2\pi}{3} \). **Explanation:** This problem involves determining the angle whose cosine is \( \cos \frac{2\pi}{3} \). Since the cosine function is periodic and arccos is its inverse over the range \( [0, \pi] \), the result is direct as \( \frac{2\pi}{3} \). *Note: There are no graphs or diagrams in this image.*
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