Evaluate Trig Function from Unit Circle

Which statement correctly answers the following? cos (4π/3)

• The x-coordinate at 4π/3 is -√3 / 2

• The x-coordinate at 4π/3 is -√1 / 2

• The y-coordinate at 4π/3 is -√3 / 2

• The y-coordinate at 4π/3 is -√1 / 2

Given the point (-1,0), which radian value are you at on your Unit Circle?

• π

• π/2

• 3π/2

• 2π

Evaluate!!!

sin (60^o) = _____

• √3 / 2

• 1 / 2

• √2 / 2

• 1

Which quadrant are you given that Cos X is the only function that's positive?

• Q4

• Q3

• Q2

• Q1

Mathematical Equivalence

ON

tan 7π/4

• -1

• 1

• √2/2

• undefined

Find the value of the trigonometric function: \sin\left(690\degree\right)

Mathematical Equivalence

ON

sin 60° = ​ ​ (a)   / ​ ​ (b)  

​ ​ ​

• 2

• 1