Quiz Trig Review and Unit Circle Path B

sin 5π/6

• √3/2

• -√3/2

• 1/2

• -1/2

cos 225⁰

• -√3/2

• √3/2

• √2/2

• -√2/2

tan 4π/3

• √3

• -√3

• -√3/3

• √3/3

What is the value of sine at 30

• 1/2
• √3 / 2
• 0
• √2 ⁄ 2

At what point are sine and cosine the same value?

• 0
• 90
• 45
• 60

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

• y

• x

• x/y

• y/x

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

• y

• x

• x/y

• y/x

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

• y/r
• x/r
• r/y
• y/x

What is the radius of the unit circle?

• 0
• 1
• 1/2
• √2/2

Find sin(-240°)

• (√3)/2)

• (-1/2)

• (√2/2)

• (1/2)