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Calculus1 9 Online
OpenStudy (anonymous):

derivative of cos2theta

OpenStudy (vinicius1):

-2cos(theta)*sin(x)

OpenStudy (vinicius1):

you have to apply the chain rule

OpenStudy (vinicius1):

-2cos(theta)*sin(theta)

OpenStudy (anonymous):

I'll go along with the second response above: you have to apply the chain rule. With that information you should be able to find the correct answer, which is *not* given above.

OpenStudy (vinicius1):

-sin(2theta)?

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