what is the relationship between cos 20 and cos 160?

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what is the relationship between cos 20 and cos 160?

Guest Sep 25, 2014

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Best Answer

+118658

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cos 160 = -cos(180-160) = -cos20

Melody Sep 25, 2014

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+118658

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Best Answer

cos 160 = -cos(180-160) = -cos20

Melody Sep 25, 2014

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