Radian Angle Measures on the Unit Circle

sin π/4

• √2∕2
• 1/2
• √3/2
• 0

cos 5π/6

• -1/2
• 1/2
• √3/2
• -√3/2

cos 4π/3

• -√3/2
• √3/2
• 1/2
• -1/2

sin 2π/3

• 1/2
• -1/2
• √3/2
• -√3/2

What is the exact coordinates of  3π/4 on the unit circle?

• (−√2∕2, √2∕2)
• (−√2∕2, −√2∕2)
• (−√3∕2, −√2∕2)
• (√2∕2, −√2∕2)

• 1
• -1
• 0
• √2/2

• √3/3
• √3
• 1
• undefined

• -1
• 0
• undefined
• √3

• ½
• √2/2
• √3/2
• 1

What terminal point corresponds to 3π/2?

• (1,0)
• (0,1)
• (-1,0)
• (0,-1)