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sin 3a (formula and example) (sine of triple angle) (trigonometry) (handwritten)
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Continue readingtan 2a (formula and example) (tangent of double angle) (trigonometry) (handwritten)
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Continue readingcos 2a (formula and example) (cosine of double angle) (trigonometry) (handwritten)
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Continue readingsin 2a (formula and example) (sine of double angle) (trigonometry) (handwritten)
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