Unit D Review: Unit Circle

Which quadrant is angle -13π/4 in?

• Quadrant I
• Quadrant II
• Quadrant III
• Quadrant IV

Tags

CCSS.HSF.TF.A.2

What is the reference angle of -275°?

• -85°
• 85°
• 5°
• -5°

What is the measure of the quadrantal angle sin π/2?

• 0
• 1
• Undefined
• 1/2

Tags

CCSS.HSF.TF.A.2

360° is equal to how many radians?

• π/2
• π
• 2π
• πr²

Tags

CCSS.HSF.TF.A.1

cos 225⁰

• -√3/2

• √3/2

• √2/2

• -√2/2

Tags

CCSS.HSF.TF.A.2

CCSS.HSF.TF.A.3

CCSS.HSF.TF.C.8

tan 4π/3

• √3

• -√3

• -√3/3

• √3/3

Tags

CCSS.HSG.SRT.C.7

csc 330⁰

• 2

• -2

• √2

• -√2

Tags

CCSS.HSG.SRT.C.7

 $\sec\left(\frac{\pi}{2}\right)$  

• undef

• 0

• 1

• -1