Review Unit Circle

Based on your unit circle sin(0^o)=

• 1

• -1

• 0

• 1/2

For what angles are sine and cosine the same?

• 0^o

• 45^o and 135⁰

• 45^o and 225⁰

• 45^o and 315⁰

What is the exact value of cos 330°

• -1/2

• -√3/2

• 1/2

• √3/2

What is the exact value of cos 135°

• √2/2

• -√2/2

• √3/2

• -√3/2

What is the exact value of sin 240°

• -1/2

• -√3/2

• 1/2

• √3/2

What is the exact value of cos 315°

• -√2/2

• √2/2

• 1/2

• √3/2

π/2 is equal to how many degrees?

• 180°

• 90°

• 135°

• 240°

4π/3 is equal to how many degrees?

• 60°

• 240°

• 300°

• 120°

210°

• 5π/4

• 7π/6

• 4π/3

• 2π/3

Name the angle indicated by the graph in both radians and degrees.