Unit Circle review

What is the value of cosine at  $0\degree$ ?

• 1

• 0

• -1

• undefined

Tags

CCSS.HSF.TF.A.2

What is the exact coordinates of  $\frac{3\pi}{4}$  on the unit circle?

•  $\left(-\frac{\sqrt{2}}{2},\frac{\sqrt{2}}{2}\right)$   

•  $\left(-\frac{\sqrt{2}}{2},-\frac{\sqrt{2}}{2}\right)$  

•  $\left(\frac{\sqrt{2}}{2},-\frac{\sqrt{2}}{2}\right)$  

•  $\left(\frac{\sqrt{2}}{2},\frac{\sqrt{2}}{2}\right)$  

Tags

CCSS.HSF.TF.A.2

What is the value of sine at  $0\degree$ ?

• 1

• -1

• 0

• undefined

Tags

CCSS.HSF.TF.A.2

For what angles are sine and cosine the same?

• 0^o
• 45^o and 135⁰
• 45^o and 225⁰
• 45^o and 315⁰

Tags

CCSS.HSF.TF.B.7

What is the exact value of cos 330°?

• $-\frac{1}{2}$

• $-\frac{\sqrt{3}}{2}$

• $\frac{1}{2}$

• $\frac{\sqrt{3}}{2}$

Tags

CCSS.HSF.TF.A.2

What is the value of cosine at  $90\degree$ ?

• 1

• 0

• -1

• undefined

Tags

CCSS.HSF.TF.A.2

What is the reference angle of 330°?

• 30°

• 130°

• 300°

• -30°

Which of the following is the reference angle of $\frac{7\pi}{4}$  ?

•  $\pi$  

•  $\frac{\pi}{4}$  

•  $\frac{\pi}{3}$  

•  $\frac{\pi}{6}$  

Tags

CCSS.HSF.TF.B.7

What quadrant is  $-\frac{2\pi}{3}$  in?

• I

• II

• III

• IV

Tags

CCSS.HSF.TF.A.2

What is the value of sine at  $30\degree$ ?

•  $\frac{\sqrt{2}}{2}$  

•  $\frac{1}{2}$   

• 1

•  $\frac{\sqrt{3}}{2}$  

Tags

CCSS.HSF.TF.A.2