Sin Cos and Tan on Unit Circle Radians

tan 7π/4

• -1

• 1

• √2/2

• undefined

What is the radius of the unit circle?

• 0

• 1

• 1/2

• √2/2

What is the value of sine at 330

• 1/2

• -1/2

• √3 / 2

• -√3 / 2

tan 270

• 0

• 1

• -1

• undefined

What is a complete circle in radians?

• π

• 2π

• 1/2 π

• 1

What the coordinates of 180° on the unit circle?

• 0, 1

• 1, 0

• -1, 0

• 0, -1

At θ = 30°, what is the equivalent angle measure in radians?

• π/2

• π/3

• π/4

• π/6

What radian measure corresponds to the point 

• π/4

• 3π/2

• 5π/4

• 7π/3

sin 2π/3

• 1/2

• -1/2

• √3/2

• -√3/2

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

• 1

• 0

• -1

• 1/2