UNIT CIRCLE

sec 3π/2

• 0
• undefined
• 1
• -1

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)

tanθ is positive in

• the 1st and 2nd quadrants
• the 1st and 3rd quadrants
• the 1st and 4th quadrants
• the 2nd and 3rd quadrants

*

• csc x
• sec x
• cot x
• tan x

Evaluate: csc(3π/4)

• √2/2

• -√2/2

• √2

• -√2

tan(300^o)

• -√3 /3
• ½
• 2√3 /3
• -√3

What is the angle measure, in degrees, at the red marking on the unit circle?

• 30°
• 45°
• 60°
• 90°