• √3/2

• -√3/2

• √2/2

• -√2/2

sin π/4

• √2∕2
• 1/2
• √3/2
• 0

cos 5π/6

• -1/2
• 1/2
• √3/2
• -√3/2

Based on your unit circle sin(30^o)=

• √2/2
• 1/2
• 1
• √3/2

What is the exact value of sin 210°

• -1/2
• -√3/2
• 1/2
• √3/2

What is the exact value of cos 330°

• -1/2
• -√3/2
• 1/2
• √3/2

4π/3 is equal to how many degrees?

• 60°
• 240°
• 300°
• 120°

π/2 is equal to how many degrees?

• 180°
• 90°
• 135°
• 240°

Convert 150⁰ to radians

• 5π/6
• 3π/4
• 7π/6
• 2π/3

Convert the following to degrees:
-8π/5 radians

• -288⁰
• -260⁰
• -275⁰