# Trigonometry Definitions

 Angle in Standard Position An angle whose initial ray is on the positive side of the x-axis and whose vertex is at the origin. Reference Angle The positive acute angle formed by the terminal ray of an AISP and the x-axis. Radian Measure The length of the intercepted arc divided by the radius (when the angle has its vertex a the center of a circle). Unit Circle A circle whose radius is 1. Co-terminal Angles 2 AISP that have the same terminal ray. Quadrantal Angle An AISP that has its terminal ray on the x or y axis. Sine the function that pairs the AISP with the y coordinate of point P* Cosine the function that pairs the AISP with the x coordinate of point P Amplitude Half the difference of y-max and y-min Frequency The number of cycles drawn from 0 to 2pi. Period The length of the interval necessary to see one full cycle. Tangent The function that pairs the AISP with the y coordinate of point P divided by the x coordinate of point P. Secant The function that pairs the AISP with the reciprocal of the x coordinate of point P. Cosecant The function that pairs the AISP with the reciprocal of the y coordinate of point P. Cotangent The function that pairs the AISP with the x coordinate of point P divided by the y coordinate of point P. Inverse of the Sine pairs the y coordinate of point P with the AISP Inverse of the Cosine pairs the x coordinate of point P with the AISP. Inverse of the Tangent pairs the y coordinate of point P divided by the x coordinate of point P with the AISP Inverse of the Cotangent pairs the x coordinate of point P divided by the y coordinate of point P with the AISP Inverse of the Secant pairs the reciprocal of the x coordinate of point P with the AISP Inverse of the Cosecant pairs the reciprocal of the y coordinate of point P with the AISP Point P the point on the unit Circle where the terminal ray of an AISP intersects it Authoreatenbread ID196369 Card SetTrigonometry Definitions DescriptionAll the terms you need to know for Trigonometry 1 in Mr. Nardocci's class. Updated2013-01-29T21:28:43Z Show Answers