Evaluating Trig by Unit Circle

• ½
• √2/2
• √3/2
• 1

Tags

CCSS.HSF.TF.A.2

cos 4π/3

• -√3/2

• √3/2

• 1/2

• -1/2

Tags

CCSS.HSF.TF.A.2

sin π/4

• √2∕2

• 1/2

• √3/2

• 0

Tags

CCSS.HSF.TF.A.2

sin 2π/3

• 1/2

• -1/2

• √3/2

• -√3/2

Tags

CCSS.HSF.TF.A.2

What is the value of sine at 210?

• 1/2

• -1/2

• √3 / 2

• -√3 / 2

Tags

CCSS.HSF.TF.A.2

At what point are sine and cosine the same value?

• 0

• 90

• 45

• 60

Tags

CCSS.HSF.TF.A.2

What is the radius of a unit circle?

• 1

• 2

• 1/2

• 0

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

Which of the following degree measures is represented by this diagram?

Tags

CCSS.4.MD.C.6

Which of the following degree measures is represented by this diagram?