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Mathematics 19 Online
OpenStudy (anonymous):

Rewrite with only sin x and cos x. cos 2x - sin x

OpenStudy (anonymous):

Help appreciated.

OpenStudy (sparrow2):

cos2x=(cosx)^2-(sinx)^2

OpenStudy (anonymous):

That's not one of the answers Cos^2x-sin^2x-sin x cos^2x-sin^3x cos^2x+sin^2x+sinx cos^2x-3 sin x

OpenStudy (sparrow2):

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