5/17/23 Study Guide Final

Convert the following to degrees:-8π/5 radians (a)  

• -288⁰
• -260⁰
• -275⁰

tan 7π/4

• -1
• 1
• √2/2
• undefined

sin 7π/6

• 1/2
• -1/2
• √3/2
• -√3/2

tan (-π)

• undefined
• 0
• 1
• -1

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)

What quadrant is -2π/3 in?

• I

• II

• III

• IV

What is the radius of a unit circle?

• 1
• 2
• 1/2
• 0

• 
• 
• 
• 

*

• csc x
• sec x
• cot x
• tan x

Evaluate: csc(3π/4)

• √2/2

• -√2/2

• √2

• -√2