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cos(0) = and 2 Given < T s and 0. ,what is the value of cos(20)? -21 -8 5. 25 16 25 D.

cos(0) = and 2 Given < T s and 0. ,what is the value of cos(20)? -21 -8 5. 25 16 25 D.

Calculus: Early Transcendentals
Calculus: Early Transcendentals
8th Edition
ISBN:9781285741550
Author:James Stewart
Publisher:James Stewart
Chapter1: Functions And Models
Section: Chapter Questions
Problem 1RCC: (a) What is a function? What are its domain and range? (b) What is the graph of a function? (c) How...
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**Multiple Choice Question** **Question 3** Given \( \cos(\theta) = -\frac{4}{5} \) and \( \frac{\pi}{2} < \theta < \pi \), what is the value of \( \cos(2\theta) \)? **Options:** A. \( -\frac{21}{5} \) B. \( -\frac{8}{5} \) C. \( \frac{7}{25} \) D. \( \frac{16}{25} \)
Transcribed Image Text:**Multiple Choice Question** **Question 3** Given \( \cos(\theta) = -\frac{4}{5} \) and \( \frac{\pi}{2} < \theta < \pi \), what is the value of \( \cos(2\theta) \)? **Options:** A. \( -\frac{21}{5} \) B. \( -\frac{8}{5} \) C. \( \frac{7}{25} \) D. \( \frac{16}{25} \)
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