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Kosovo MO 2010 Grade 11, Problem 3

Source: Kosovo MO 2010 Grade 11, Problem 3

June 7, 2021
algebra

Problem Statement

Arrange the numbers cos⁡2,cos⁡4,cos⁡6\cos 2, \cos 4, \cos 6 and cos⁡8\cos 8 from the biggest to the smallest where 2,4,6,82,4,6,8 are given as radians.
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