Unit Circle & Exact Trig Values

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

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.2

CCSS.HSF.TF.A.4

CCSS.HSF.TF.C.8

tanθ 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

sin 180 $\degree$   =

• 0

• 1

• -1 

• undefined

Tags

CCSS.HSF.TF.A.2

cos $180\degree$   =

• 0

• 1

• -1 

• undefined

Tags

CCSS.HSF.TF.A.2

The darkest line in the first quadrant would best match an angle of:

• 30^o

• 45^o

• 60^o

• 90^o

Tags

CCSS.4.MD.C.5B

CCSS.HSG.CO.A.1

The darkest line in quadrant one would best match an angle of:

• 30^o

• 45^o

• 60^o

• 90^o

Tags

CCSS.4.MD.C.5B

CCSS.HSG.CO.A.1

Based on the unit circle, what is the value of sin  $\theta$  ?

• y

• x

• x/y

• y/x

Tags

CCSS.HSF.TF.A.2

Based on the unit circle, what is the value of  $\cos\theta$  ?

• y

• x

• x/y

• y/x

Tags

CCSS.HSF.TF.A.2

Based on the unit circle, what is the value of tan $\theta$  ?

• y/r

• x/r

• r/y

• y/x

Tags

CCSS.HSF.TF.A.2