Evaluating Unit Circle Quiz 4/23/20

evaluate

 $\sin\left(210\degree\right)$  

• 1/2

• -1/2

• √3 / 2

• -√3 / 2

At what point are sine and cosine the same value?

• 0 degrees

• 90 degrees

• 45 degrees

• 60 degrees

evaluate

 $\sin\left(330\degree\right)$  

• 1/2

• -1/2

• √3 / 2

• -√3 / 2

evaluate

 $\cos\left(315\degree\right)$  

• 0

• 1

• √2 / 2

• -√2 /2

evaluate

 $\sin\left(150\degree\right)$  

• 0

• 1/2

• 1

• √3 / 2

evaluate cos 150^o

• -1/2

• 1/2

• √3/2

• -√3/2

What are the coordinates of 60° on the unit circle?

• (0, 1)
• (1/2, √3/2)
• (√3/2, 1/2)
• (√2/2, 1/2)

Tags

CCSS.HSF.TF.A.3

CCSS.HSF.TF.C.8

What is the radius of the unit circle?

• 0
• 1
• 1/2
• √2/2

Tags

CCSS.HSF.TF.A.2

evaluate $\cos\left(135\degree\right)$  

• √2/2

• -√2/2

• √3/2

• -√3/2

evaluate sin π/4

• √2∕2

• 1/2

• √3/2

• 0