Unit 3 Practice - Unit Circle & Trig

Based on the unit circle, what is the value of cos?

• y

• x

• x/y

• y/x

Tags

CCSS.HSF.TF.A.2

Based on the unit circle, what is the value of sin?

• y

• x

• x/y

• y/x

Tags

CCSS.HSF.TF.A.2

Based on the unit circle, what is the value of tan?

• y/r
• x/r
• r/y
• y/x

Tags

CCSS.HSF.TF.A.2

sin(11π/6)

• -1/2
• 1/2
• √3/2
• -√3/2

Tags

CCSS.HSF.TF.A.2

Find sin(-240°)

• (√3)/2)

• (-1/2)

• (√2/2)

• (1/2)

Tags

CCSS.HSF.TF.A.4

Find cos(600°)

• (-1/2)

• (-√3/2)

• (√3/2)

• (√2/2)

Tags

CCSS.HSF.TF.A.2

tan (-π)

• undefined
• 0
• 1
• -1

Tags

CCSS.HSF.TF.A.2

What are the coordinates of 60° on the unit circle?

• (0, 1)
• (1/2, √3/2)
• (√3/2, 1/2)
• (√2/2, 1/2)

Tags

CCSS.HSF.TF.A.2

cosθ is positive in

• the 1st and 2nd quadrants
• the 1st and 3rd quadrants
• the 1st and 4th quadrants
• the 2nd and 3rd quadrants

Tags

CCSS.HSF.TF.A.2

sinθ is positive in

• the 1st and 2nd quadrants
• the 1st and 3rd quadrants
• the 1st and 4th quadrants
• the 2nd and 3rd quadrants

Tags

CCSS.HSF.TF.A.2