Coterminal Angles
Reference Angles
Unit Circle
Trig. Functions On the Unit Circle (Degrees)
Trig. Functions On the Unit Circle (Radians)
100

This angle has a positive coterminal angle at 13pi/6 radians and negative coterminal angle at -11pi/6 radians.

What is pi/6 radians

100
My initial angle is in standard position, while my terminal side lies on 330 degrees.
What is 30 degrees?
100
The amount of degrees and radians in one rotation of the unit circle.
What is 360 degrees and 2pi radians?
100

sin(90).

What is 1?

100

csc(7pi/4)

What is -sqrt(2)

200

This angle has a positive coterminal angle at 7pi/6 and a negative coterminal angle at -29pi/6.

What is -5pi/6 degrees?

200
My initial side is in standard position, while my terminal side is at -5pi/4.
What is pi/4?
200

How you can remember the first quadrant of the unit circle.

What are 30-60-90 triangles and the 45-45-90 triangle?

200

cos(210)

What is -sqrt(3)/2

200

tan(3pi/2)

What is undefined?

300
The positive coterminal angle for this angle is 11pi/4
What is 3pi/4
300
the reference angle for 1000 degrees where the initial side is in standard position.
What is 80 degrees
300
The trigonometric functions that correspond to the (x, y) of an ordered pair.
What are cos-x and sin-y
300

tan(45).

What is 1?

300

cos(5pi/3)

What is 1/2

400

The negative coterminal angle for this angle is -32pi/6

What is -10pi/3

400
the reference angle for 40pi/3 radians.
What is pi/3 radians = 60 degrees
400

Regardless of positive or negative, the three possible numbers we will find as coordinates for angles in quadrants 1,2,3 and 4.

What are sqrt(3)/2, sqrt(2)/2, 1/2

400

csc(210)

What is -2?

400

sin(3pi/4)

What is sqrt(2)/2?

500

This angle has a positive coterminal angle of 17pi/6 and a negative coterminal angle of -210 degrees. (give in both radians and degrees.)

What is 5pi/6 and 150 degrees?

500

The reference angle for 225 degrees IN RADIANS

What is pi/4?

500

The reciprocals of sine, cosine, and tangent, respectively.

What are cosecant (csc), secant (sec), and cotangent (cot)?

500

sec(330)

What is 2sqrt(3)/3

500

cot(7pi/6)

What is sqrt(3)?

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