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Mathematics 17 Online
OpenStudy (anonymous):

cos(-x)=-cos x for all values of x ture or false?

OpenStudy (apoorvk):

FALSE!! cos(-x) = cos(x) since the cosine for the rotation is the same, clockwise or anticlockwise!

OpenStudy (anonymous):

I meant False copied wrong word sry

OpenStudy (anonymous):

okay. thanks.

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