Unit Circle Exact Value Quiz

What is the value of cosine at 0

• 0
• 1/2
• 1
• √3 / 2

What is the value of sine at 30

• 1/2
• √3 / 2
• 0
• √2 ⁄ 2

What is the value of cosine at 135

• 0
• 1/2
• √2 /2
• -√2 /2

sin π/4

• √2∕2
• 1/2
• √3/2
• 0

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)

In which quadrant is -570⁰?

• Q1

• Q2

• Q3

• Q4

sinθ is positive in

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

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 π =

• 0
• 1
• -1 
• undefined

cos π =

• 0
• 1
• -1 
• undefined