Exact Value from Unit Circle

What is the value of sine at 210°?

• 1/2

• -1/2

• √3 / 2

• -√3 / 2

Tags

CCSS.HSF.TF.A.2

What are the coordinates of 180° on the unit circle?

• (0, 1)

• (1, 0)

• (-1, 0)

• (0, -1)

Tags

CCSS.HSF.TF.A.2

What is x if sin(x) = 0.5?

• 30^o

• 30^o or 150^o

• 150^o

• -30^o or 30^o

Tags

CCSS.HSF.TF.B.7

Find the exact value of sin(120°).

Tags

CCSS.HSF.TF.C.9

Find the exact value of cos(3π/2).

• 1

• 0

• -1

• 270°

Tags

CCSS.HSF.TF.A.2

Find the exact value of tan(π/4).

• 45°

• 1

Tags

CCSS.HSF.TF.A.2

Find the height of the point located at 170 degrees on the unit circle.

Then ROUND your answer to TWO DECIMAL PLACES

Tags

CCSS.HSF.TF.A.2

Write the EXACT coordinates of the point located at 60 degrees on the unit circle.

• (.5,.9)

• (1/2,√3/2)

• (√3/2,1/2)

• (.866,.5)

• None of these

Tags

CCSS.HSF.TF.A.2

What is the sine value of π/4 radians?

• .785

• 45

• √2/2

• -√2/2

• none of these

Tags

CCSS.HSF.TF.A.2

What is the cosine value of 5π/4 radians?

• 225

• √2/2

• -√2/2

• 1/2

• none of these

Tags

CCSS.HSF.TF.A.2