period definition trigonometry
The three basic trigonometric functions have periods as demonstrated below: ï· Sine function -> period is 2ï°radians or 360ï°. ï· Cosine function -> period is 2ï°radians or 360ï°. ï· Tangent function -> period is ï°radians or 180ï°. The basic graphs of these 3 trigonometric functions are: The length of one complete cycle of a trigonometric function is called the Period. Typically we use x=0 as the starting point for the graph. When the length of the period. is not the default, the functions will be written in the format similar to: f t ktï¨ï©ï½sinï¨ï©, g x kxï¨ï©ï½cosï¨ï©, or h kï¨ï±ï©ï½tanï¨ï±ï©.