UnitCircle #2: Q1 Trig

What are the 3 basic trig functions?

• Sine, cosine, and cotangent

• Sine, cotangent, and cosecant

• Sine, cosine, and tangent

• Cosecant, cosine, and cotangent

Tags

CCSS.HSG.SRT.C.6

What is the radius of a unit circle?

• 1
• 2
• 1/2
• 0

Tags

CCSS.HSF.TF.A.2

 which ordered pair 

represents the ordered pair
 $\left(x,\ y\right)$ 
on the unit circle

•  $\left(\tan\theta,\ \cos\theta\right)$  

•  $\left(\tan\theta,\ \sin\theta\right)$  

•  $\left(\sin\theta,\ \cos\theta\right)$  

•  $\left(\cos\theta,\ \sin\theta\right)$  

Tags

CCSS.HSF.TF.A.2

 $\cos\theta$  is positive in

• the 1st and 2nd quadrants

• the 1st and 3rd quadrants

• the 1st and 4th quadrants

• the 2nd and 3rd quadrants

Tags

CCSS.HSF.TF.A.2

 $\sin\ \theta$  is positive in

• the 1st and 2nd quadrants

• the 1st and 3rd quadrants

• the 1st and 4th quadrants

• the 2nd and 3rd quadrants

Tags

CCSS.HSF.TF.A.2

 $\tan\theta$  is positive in

• the 1st and 2nd quadrants

• the 1st and 3rd quadrants

• the 1st and 4th quadrants

• the 2nd and 3rd quadrants

Tags

CCSS.HSF.TF.A.2

 $\tan\theta$  is equivalent to which ratio:

•  $\frac{y}{x}$  
  

•  $\frac{x}{y}$  
  

•  $\frac{1}{x}$  
  

•  $\frac{y}{1}$  
  

Tags

CCSS.HSG.SRT.C.6

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

• $\left(0,1\right)$

• $\left(\frac{1}{2},\frac{\sqrt{3}}{2}\right)$

• $\left(\frac{\sqrt{3}}{2},\frac{1}{2}\right)$

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

Tags

CCSS.HSF.TF.A.2

 $\sin\left(\frac{\pi}{2}\right)=$  

• 0

• 1
  

•  $\frac{1}{2}$  

•  $\frac{\sqrt{2}}{2}$  

•  $\frac{\sqrt{3}}{2}$  

Tags

CCSS.HSF.TF.A.2

 $\cos\left(30\degree\right)=$  

• 0

• 1
  

•  $\frac{1}{2}$  

•  $\frac{\sqrt{2}}{2}$  

•  $\frac{\sqrt{3}}{2}$  

Tags

CCSS.HSF.TF.A.2