Show that sin4 = 3/8 1/2cos(2) + 1/8 cos 4() .
Question:
Show that sin4θ = 3/8 − 1/2cos(2θ) + 1/8 cos 4(θ)
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To show that sin4 can be expressed as 38 12cos2 18cos4 well use various trigonometric identities ...View the full answer
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Related Book For 
Precalculus Concepts Through Functions A Unit Circle Approach To Trigonometry
ISBN: 9780137945139
5th Edition
Authors: Michael Sullivan
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