Unit circle

sin 7π/6

• 1/2
• -1/2
• √3/2
• -√3/2

Tags

CCSS.HSF.TF.A.2

sinθ 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.2

cos 5π/6

• -1/2
• 1/2
• √3/2
• -√3/2

Tags

CCSS.HSF.TF.A.2

sin π/4

• √2∕2
• 1/2
• √3/2
• 0

Tags

CCSS.HSF.TF.A.2

cos 4π/3

• -√3/2
• √3/2
• 1/2
• -1/2

Tags

CCSS.HSF.TF.A.2

sin 2π/3

• 1/2
• -1/2
• √3/2
• -√3/2

Tags

CCSS.HSF.TF.A.2

Choose the best match for the graph.

• 30^o
• 45^o
• 60^o
• 90^o

Tags

CCSS.4.MD.C.5B

CCSS.HSG.CO.A.1

tan 4π/3

• √3

• -√3

• -√3/3

• √3/3

Tags

CCSS.HSG.SRT.C.7

cos 225⁰

• -√3/2

• √3/2

• √2/2

• -√2/2

Tags

CCSS.HSF.TF.A.2

CCSS.HSF.TF.A.3

CCSS.HSF.TF.C.8

sin Θ = -√2/2

• 5π/4

• 3π/4

• 7π/6

• 5π/6

Tags

CCSS.HSF.TF.B.7