Difference between revisions of "Trigonometry"
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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". | '''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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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. | ||
Revision as of 04:30, November 14, 2012
Trigonometry is the study of angles and triangles, 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.
- SOH: Sine = opposite over hypotenuse
- CAH: Cosine = adjacent over hypotenuse
- TOA: Tangent = opposite over adjacent
