4 years ago

Rewrite with only sin x and cos x. sin 3x

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1 answer:

Kobotan [32]4 years ago

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Sin 3x is equal to cos 6x.

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$=\frac{\frac{4}{7}}{\frac{1}{8}}\\\\=\frac{4}{7}*\frac{8}{1}\\\\=\frac{32}{7}$

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$\frac{\frac{1}{8}}{\frac{4}{7}}=\frac{1}{8}*\frac{7}{4}\\\\=\frac{7}{32}$

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