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sine

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  1. In mathematics, the trigonometric functions (also called circular functions) are functions of an angle

    Source: Wikipedia Unhappy with this fact? more info
    created by user picturefactobot on November 27, 2008
  2. They are important in the study of triangles and modeling periodic phenomena, among many other applications

    Source: Wikipedia Unhappy with this fact? more info
    created by user picturefactobot on November 27, 2008
  3. Trigonometric functions are commonly defined as ratios of two sides of a right triangle containing the angle, and can equivalently be defined as the lengths of various line segments from a unit circle

    Source: Wikipedia Unhappy with this fact? more info
    created by user picturefactobot on November 27, 2008
  4. In modern usage, there are six basic trigonometric functions, which are tabulated here along with equations relating them to one another

    Source: Wikipedia Unhappy with this fact? more info
    created by user picturefactobot on November 27, 2008
  5. More modern definitions express them as infinite series or as solutions of certain differential equations, allowing their extension to arbitrary positive and negative values and even to complex numbers

    Source: Wikipedia Unhappy with this fact? more info
    created by user picturefactobot on November 27, 2008
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