Unit Circle and Trigonometric Functions

What are the coordinates of the point on the unit circle corresponding to an angle of 60 degrees?

• (√3/2, 1/2)

• (0.866, 0.5)

• (1/2, √3/2) or (0.5, 0.866)

• (1, 0)

Express the angle 5π/6 in degrees.

• 30 degrees

• 120 degrees

• 180 degrees

• 150 degrees

Simplify sin(π/4) + cos(π/4).

• √2

• 2

• 1

• 0

What is the value of tan(π/3)?

• √3

• 1/√3

• π/3

• 2

Find the exact value of sin(π/3).

• 1/2

• √3/2

• 2/√3

• 0

What is the value of cos(π/6)?

• 1

• 2/√3

• √3/2

• 1/2

Evaluate sin(π/2) + cos(π/2).

• 2

• 0

• 1

• 1

What is the value of sec(π/4)?

• π/4

• √2

• 2

• 1

Calculate the value of cot(π/4).

• 1

• √2

• 0

• √3

What is the result of cos(π/2)?

• 1

• 0

• √2/2

• √3/2