Evaluating Trig by Unit Circle

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

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

• y/r

• x/r

• r/y

• y/x

Tags

CCSS.HSF.TF.A.2

sin (π/2)

• √3/2

• √2/2

• 1/2

• 1

Tags

CCSS.HSF.TF.A.2

cos (π/4)

• √3/2

• √2/2

• 1/2

• 1

Tags

CCSS.HSF.TF.A.2

Tags

CCSS.HSF.TF.A.2

Find the exact value of the expression using the unit circle:

Mathematical Equivalence

ON

Tags

CCSS.HSF.TF.A.2

tan(2π) ​ ​ ​

Mathematical Equivalence

ON

Tags

CCSS.HSF.TF.A.2

• -1
• 0
• undefined
• √3

Tags

CCSS.HSF.TF.A.2

sin(π/2) ​ ​

Mathematical Equivalence

ON

Tags

CCSS.HSF.TF.A.2

tan(π) ​

Mathematical Equivalence

ON

Tags

CCSS.HSF.TF.A.2