Calculus: Early Transcendentals
Calculus: Early Transcendentals
8th Edition
ISBN: 9781285741550
Author: James Stewart
Publisher: Cengage Learning
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Given that \(\cos \theta = -\frac{\sqrt{2}}{4}\), and \(\frac{\pi}{2} < \theta < \pi\), find the exact value of each of the following.

(a) \(\sin(2\theta)\)  
(b) \(\cos(2\theta)\)  
(c) \(\sin\left(\frac{\theta}{2}\right)\)  
(d) \(\cos\left(\frac{\theta}{2}\right)\)
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Transcribed Image Text:Given that \(\cos \theta = -\frac{\sqrt{2}}{4}\), and \(\frac{\pi}{2} < \theta < \pi\), find the exact value of each of the following. (a) \(\sin(2\theta)\) (b) \(\cos(2\theta)\) (c) \(\sin\left(\frac{\theta}{2}\right)\) (d) \(\cos\left(\frac{\theta}{2}\right)\)
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