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Trigonometric Ratios Definition Wikipedia. Trigonometric ratios are defined as the values of all the trigonometric functions based on the value of the ratio of sides in a the trigonometric ratios for some specific angles such as 0 °, 30 °, 45 °, 60 ° and 90° are given below, which are commonly used in mathematical calculations. In that case, side ab will be the hypotenuse.
Trigonometric ratios are characteristics of angles, not of lengths. Trigonometric ratios synonyms, trigonometric ratios pronunciation, trigonometric ratios translation, english dictionary definition of trigonometric ratios. In mathematics, trigonometric identities are equalities that involve trigonometric functions and are true for every value of the occurring variables for which both sides of the equality are defined.
Trigonometric functions are typically used to calculate unknown lengths or angles in a right triangle.
Trigonometry involves calculating angles and sides in triangles. With these definitions the trigonometric functions can be defined for complex numbers. In that case, side ab will be the hypotenuse. Sine (sin), cosine (cos) the egyptians defined the seked as the ratio of the run to the rise, which is the reciprocal of the modern definition of the slope.
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