Evaluating Trig Unit Circle Degrees

• -1 / 2
• √3 / 2
• -√3 / 2
• 1 / 2

Find cos(600°)

hint: find the coterminal angle

• (-1/2)

• (-√3/2)

• (√3/2)

• (√2/2)

cos 5π/6

• -1/2

• 1/2

• √3/2

• -√3/2

Find the exact value of the expression using the unit circle:

Mathematical Equivalence

ON

sin 60° = ​ ​ (a)   / ​ ​ (b)  

​ ​ ​

• 2

• 1

sin (405°)

• 1 / 2

• √3 / 2

• 1

• √2 / 2

sin 2π/3

• 1/2

• -1/2

• √3/2

• -√3/2