Trigonometry Definitions
Home > Flashcards > Print Preview
The flashcards below were created by user
eatenbread
on
FreezingBlue Flashcards. What would you like to do?

Angle in Standard Position
An angle whose initial ray is on the positive side of the xaxis and whose vertex is at the origin.

Reference Angle
The positive acute angle formed by the terminal ray of an AISP and the xaxis.

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.

Coterminal 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 ymax and ymin

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