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Sine and cosine are two of the most fundamental functions in mathematics, especially in trigonometry. They describe the relationship between the angles and sides of right triangles, but their importance extends far beyond geometry. The sine function gives the ratio of the length of the side opposite an angle to the hypotenuse, while the cosine function gives the ratio of the adjacent side to the hypotenuse. On the unit circle, sine corresponds to the y-coordinate of a point determined by an angl
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