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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
Description
All the terms you need to know for Trigonometry 1 in Mr. Nardocci's class.
Updated
2013-01-29T21:28:43Z
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