Trig. Using exact values with Unit Circle

sin π/4

• √2∕2
• 1/2
• √3/2
• 0

Tags

CCSS.HSF.TF.A.2

Based on your unit circle cos(0^o)=

• 1
• 0
• -1
• 1/2

Tags

CCSS.HSF.TF.A.2

cos(60°)

• 0
• 1/2
• √3/2
• 1

Tags

CCSS.HSF.TF.A.2

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)

Tags

CCSS.HSF.TF.A.2

tan (-π)

• undefined
• 0
• 1
• -1

Tags

CCSS.HSF.TF.A.2

What is the radius of the unit circle?

• 0
• 1
• 1/2
• √2/2

Tags

CCSS.HSF.TF.A.2

Convert π/3 to degrees

• 30

• 45

• 60

• 90

Tags

CCSS.HSF.TF.A.2

Convert π/4 to degrees

• 30

• 45

• 60

• 90

Tags

CCSS.HSF.TF.A.2

Convert π/6 to degrees

• 30

• 45

• 60

• 90

Tags

CCSS.HSF.TF.A.2