Prove the identity sin 4 /tan = sincos sincos.
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Prove the identity sin4θ/tanθ = sinθcosθ − sinθcos³θ.
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We start with the lefthand side of the equation and use the identity tan sincos sin4tan s...View the full answer
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Related Book For
Complete Pure Mathematics 1 For Cambridge International AS & A Level
ISBN: 9780198427438
2nd Edition
Authors: Jean Linsky, Brian Western, James Nicholson
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