Solve cos x cos 3x – sin x sin 3x = 0 between 0 and 2π

Timothy Gan

AM Unit 9 Trigonometric Identities and Formulae Practice Q1: Solve cos x cos 3x – sin x sin 3x = 0 between 0 and 2π

Solve $\cos x\cos 3x-\sin x\sin 3x=0$ for $0\le x\le 2\pi $.

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Solve cos x cos 3x - sin x sin 3x = 0 between 0 and 2π

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Published: 17th February 2023

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Timothy Gan

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