Unit Circle Practice

What is the value of cos(π/2)?

• 0

• 1

• -1

• 0.5

What is the sine of the angle where the red line is?

• -√2/2

• √2/2

• 1/2

• 0

What is the value of tan(30°)?

• 1/√3

• √3/3

• √3

• 3

What is the value of sin(π/6)?

• 1/2

• √2/2

• √3/2

• 0

What is the value of sin(0°)?

• 0

• 1

• -1

• 0.5

Tangent is defined as:

• sine/cosine

• cosine/sine

• sine^2/cosine

• 1/sine

What is the value of cos(7π/4)?

• √2/2

• -√2/2

• 1

• 0

What is the value of tan(60°)?

• 1

• √3

• √2

• 0.5

What is sin(90°)?

• 0

• 0.5

• 1

• 1.5

What is the value of sin(7π/4)?

• -√2/2

• √2/2

• -1

• 1