trig

Convert π radians to degrees.

• 90⁰
• 180⁰
• 360⁰
• 60⁰

Which of the following shows  $480\degree$  graphed in standard position?

• 
• 
• 
• 

 $\frac{1}{\cos x}=?$  

•  $\sin x$  

•  $\csc x$  

•  $\sec x$  

•  $\cot x$  

Which trig functions are positive in Q3?

•  $\sin\theta,\csc\theta$ 

•  $\cos\theta,\sec\theta$ 

•  $\tan\theta,\cot\theta$ 

• none of the above

*

• cos x
• csc x
• sec x
• cot x

What is the reference angle for 240 degrees?

• 60 degrees
• 30 degrees
• 45 degrees
• 210 degrees

sin π/4

• √2∕2
• 1/2
• √3/2
• 0

cos (π/2)

• undefined

• 0

• 1

• 1/2

tan(π/3)

• √3/3

• 0

• √3

• 1

What is the reference angle for 150 degrees?

• 60 degrees

• 30 degrees

• 45 degrees

• 90 degrees