Trigonometry is the study of angles and [[triangle]]s, relying heavily on three basic functions: sine, cosine and tangent. These functions are abbreviated as "sin", "cos" and "tan".
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Trigonometry is the study of angles and [[triangle]]s, relying heavily on three basic functions: [[sine]], [[cosine]] and [[tangent]]. These functions are abbreviated as "sin", "cos" and "tan".
These functions are defined by reference to a "right triangle," which is a triangle in which one angle is 90 degrees.
These functions are defined by reference to a "right triangle," which is a triangle in which one angle is 90 degrees.