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Trigonometry Definitions
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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
Author:
eatenbread
ID:
196369
Card Set:
Trigonometry Definitions
Updated:
2013-01-29 21:28:43
Tags:
angle standard position quadrantal reference radian unit circle co terminal sine cosine amplitude frequency period tangent secant cosecant cotangent
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Description:
All the terms you need to know for Trigonometry 1 in Mr. Nardocci's class.
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