Unit Circle Quiz

Convert 150⁰ to radians

• 5π/6
• 3π/4
• 7π/6
• 2π/3

What is 7π/4 radians in degrees?

• 300
• 135
• 315
• 45

sin π/4

• √2∕2
• 1/2
• √3/2
• 0

cos 4π/3

• -√3/2
• √3/2
• 1/2
• -1/2

cos(300°)

• 0

• 1/2

• √3/2

• 1

cosθ is positive in

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

sin 2π/3

• 1/2
• -1/2
• √3/2
• -√3/2

tan 7π/4

• -1
• 1
• √2/2
• undefined

Find sin(-240°)

• (√3)/2)

• (-1/2)

• (√2/2)

• (1/2)

cot π/2

• undefined
• 0
• 1
• 1/2