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Trigonometry

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Trigonometry is an important field of mathematics. It deals with the study of relationship between angles and lengths of triangles. Such studies have led to the development of trigonometric functions. A trigonometric function relates the angles of a triangle to the lengths of the sides. Sine, cosine and tangents are the most prominent trigonometric functions. Such functions are useful in the study of triangles and for modeling periodic phenomena. The study of planar right-angle triangles is...