tan(-x) cos(-x)

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tan(-x) cos(-x)

Guest Jun 12, 2015

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$$tan(-x) cos(-x)=-tanxcosx=\frac{-sinx}{cosx}*cosx = -sinx$$

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Melody Jun 12, 2015

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+118667

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Best Answer

$$tan(-x) cos(-x)=-tanxcosx=\frac{-sinx}{cosx}*cosx = -sinx$$

Melody Jun 12, 2015

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