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Write the expression as the sine, cosine, or tangent of an angle. sin 9x cos x - cos 9x sin x

Write the expression as the sine, cosine, or tangent of an angle. sin 9x cos x - cos 9x sin x
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Write the expression as the sine, cosine, or tangent of an angle.

sin 9x cos x - cos 9x sin x

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User Portenez
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8.1k points

1 Answer

5 votes
sin 9x cos x - cos 9x sin x = sin(9x - x) = sin 8x
answered
User Macbert
by
8.2k points
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