Cos of 2pi/3

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Cos of 2pi/3

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Divya Yerraguntla on 13 Jan

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We must now determine the reference angle for degrees. Since degrees is in quadrant II, the reference angle is found by using the expression - theta , where theta is the angle in degrees. Calculating we get a reference angle of 60 degrees. We must now apply our knowledge of the special triangles to continue. The special triangle that contains 60 degrees is the degrees, that has side lengths of 1, sqrt 3 and 2 , respectively. So, the hypotenuse measures 2, the side opposite our angle measures sqrt 3 and the side adjacent measures 1. For example, we can say with this acronym that cos is positive in quadrant IV. Feel free to ask anything more either on my Socratic dashboard or on the main questions page.

Cos of 2pi/3

Cos 2pi gives the value of the cosine function when the angle made with the positive x-axis is 2pi, that is, one complete rotation. The value of cos 2pi is one such value and can be found using different methods. In this article, we will determine the value of cos 2pi as 1 using various methods along with some examples. So, the value of cos 2pi is equal to the value of cos 0 which is 1.

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Show older comments. Thread starter theschaef Start date Oct 19, This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register. Select the China site in Chinese or English for best site performance. But, is there any other possiblity of help here? Joined Jan 29, Messages 11, Sign in to answer this question. Can you show us what you have done so far and descirbe the problems you seem to be having and why things don't look right to you? Joined Oct 17, Messages Based on your location, we recommend that you select:. Answers Support MathWorks. Answered: Divya Yerraguntla on 13 Jan It may not display this or other websites correctly. Accept Learn more….