Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
39 Cards in this Set
 Front
 Back
What is 90º in radians

π/2


What is 60º in radians

π/3


What is 45º in radians

π/4


What is 30º in radians

π/6


What is 45º point on the circle

√2/2, √2/2


What is 60º point on the circle

1/2, √3/2


What is 90º point on the circle

0,1


What is 30º point on the circle

√3/2, 1/2


What is the tangent value for 0º

0


What is the tangent value for 30º

√3/3


What is the tangent value for 45º

1


What is the tangent value for 60º

√3


What is the tangent value for 90º

undefined


How many radians are in one full revolution of a circle?

2π


How many radians are in one halfrevolution of a circle?

π


how many radians in a quarter revolution of a circle?

.5π


how many radians are in one degree

(π/180)


how many degrees are in one radian?

(180/π)


What are the radian boundaries of quadrant 1

From 0 to (π/2)


What are the radian boundaries of quadrant 2

From (π/2) to π


What are the radian boundaries of quadrant 3

From π to (3π/2)


What are the radian boundaries of quadrant 4

From (3π/2) to 2π


What are the degree boundaries of quadrant 1

From 0º to 90º


What are the degree boundaries of quadrant 2

From 90º to 180º


What are the degree boundaries of quadrant 3

From 180º to 270º


What are the degree boundaries of quadrant 4

From 270º to 360º


How do you find a positive and negative coterminal angle

add and subtract 2π to the angle


If the sum of 2 positive angles is (π/2), those angles are ___________

Complimentary


If the sum of 2 positive angles is π, those angles are ___________

Supplementary


What is the formula to find the arc length with an angle in degrees

S=(º/360)(2πr)


What is the formula to find the arc length with an angle in radians

S=r*º*radians


What is the formula for Linear Speed?

v=(arc length (s)/time(t))


What is the formula for angular speed?

Angular Speed = (Central Angle/Time)


What equation relates angular speed and linear speed?

V=angular speed*time


Name the two quotient identities

tanº=(sinº/cosº)
cotº=(cosº/sinº) 

is sin even or odd?

odd


is cos even or odd

even


is tan even or odd?

odd


name the Pythagorean Identities

sin^2º+cos^2º=1
1+tan^2º=sec^2º 1+cot^2º=csc^2º 