Unit Circle: Exact Values and Quadrants

sin π/4

• √2∕2
• 1/2
• √3/2
• 0

Tags

CCSS.HSF.TF.A.2

cos 5π/6

• -1/2
• 1/2
• √3/2
• -√3/2

Tags

CCSS.HSG.SRT.C.7

cos 4π/3

• -√3/2
• √3/2
• 1/2
• -1/2

Tags

CCSS.HSF.TF.A.2

sin 7π/6

• 1/2
• -1/2
• √3/2
• -√3/2

Tags

CCSS.HSF.TF.A.2

tan (-π)

• undefined
• 0
• 1
• -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

What is cos 90°?

• ½
• undefined
• 1
• 0

Tags

CCSS.HSF.TF.A.2

What is tan 90°?

• 1
• undefined
• 0
• ½

Tags

CCSS.HSF.TF.A.2

How many degrees is ^π/₆ radians?

• 90°
• 60°
• 45°
• 30°

Tags

CCSS.HSF.TF.A.1

How many degrees is ^π/₄ radians?

• 30°
• 45°
• 60°
• 90°

Tags

CCSS.HSF.TF.A.1