Unit Circle & Trig. Functions & sine and cosine rule

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

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 60°?

• ½
• ^√3/₂
• ^√2/₂
• 1

Tags

CCSS.HSF.TF.A.2

What is cos 90°?

• ½
• undefined
• 1
• 0

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

How many degrees is ^π/₃ radians?

• 30°
• 45°
• 60°
• 90°

Tags

CCSS.HSF.TF.A.1

What are the coordinates of 60° on the unit circle?

• (0, 1)
• (1/2, √3/2)
• (√3/2, 1/2)
• (√2/2, 1/2)

Tags

CCSS.5.G.A.1

cosθ is positive in

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

Tags

CCSS.HSF.TF.A.3

CCSS.HSF.TF.A.4

CCSS.HSF.TF.C.8