Sine and Cosine Values on the Unit Circle

• A
• B
• C
• D

What is x if sin(x) = 0.5?

• 30^o

• 30^o or 150^o

• 150^o

• -30^o or 30^o

In what numerical values cos -120° is?

• 1

• -1

• 1/2

• -1/2

In the Cartesian plane, the terminal side of a 90° angle on a unit circle has the coordinates ______.

• (-1, 0)

• (0, -1)

• (0, 1)

• (1, 0)

What is the period of the circular function?

What Quadrant has

-a positive sine value

-a negative cosine value

• Q1

• Q2

• Q3

• Q4

What Quadrant has -a negative sine value -a negative cosine value

• Q1

• Q2

• Q3

• Q4

• 0

• -1

• 1

Move the angles in radians to their correct location on the unit circle

e

f

g

h

d

c

b

a

• 1

• 0

• -1