Unit Circle Review

Please solve on the interval 0≤θ≤2π
sin θ = 0

• θ={ 0, π/2, π, 3π/2, 2π }
• θ={ π/4, 3π/4 , 5π/4 , 7π/4 }
• θ={ 0, π , 2π }
• θ={ π/3, 5π/3 }

Solve the following for 0≤ θ <2π.

sinθ= 1 ⁄ 2

• θ = π/4

• θ = π/6 , 5π/6

• θ = 7π/6, 11π/6

• θ = -π/6

Solve the following for 0°≤ θ< 360°.

tanθ = -√3

• θ = 60°, 240°

• θ = 225°

• θ = 120°, 300°

• θ = 60°, 30°

One full rotation around the Unit Circle is _________.

• 2 cakes
• 180 degrees
• 360 degrees Celcius
• 2 pi

30 degrees is ______ radians.

• cake/6
• pi/12
• pi/6
• cake/12

4pi is the same as ________ because they are coterminal angles.

• 180 degrees
• 360 degrees
• 90 degrees
• I give up.

Find the co-terminal angle to 150^o

• 510

• 210

• 550

• -300

Find a coterminal angle to 3π/7

• -5π/7

• 2π

• 31π/7

• 28π/7

What is positive in Q4?

• all trig functions

• sine

• cosine

• tangent

What is sin(300)?

• 1/2

• -1/2

• root(3)/2

• -root(3)/2