Math Cheat Sheet for Trigonometry This website uses cookies to ensure you get the best experienceRecall the following identities $$\sin(2 \theta) = 2 \sin(\theta) \cos(\theta)$$ $$1\cos(2 \phi) = 2 \sin^2(\phi)$$ Make use of the above identities and you will get your solution Move your cursor over the gray area for complete solutionStart studying trig identities and log rules Learn vocabulary, terms, and more with flashcards, games, and other study tools
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