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Mathematics 9 Online
OpenStudy (anonymous):

Why we study negative angle in trigonometry? Is there any practical example of using it and solving any practical problem.

OpenStudy (mertsj):

Because where is it written that the angle of rotation about the polar axis will always be counterclockwise?

OpenStudy (anonymous):

yes that what i m asking why we study it in two ways. Either assume it is clockwise or anticlockwise.

OpenStudy (precal):

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