HPCCC Trig UNIT 5A Practice

Front

What is the value of cos(5π/4)?

Back

-√2/2

Front

What is the value of cos(5π/6)?

Back

-√3/2

Front

What is the value of csc(330°)?

Back

-2

Front

What is the order of the coordinate pairs for the points on the Unit Circle?

Back

(cosθ, sinθ)

Front

What is the value of tan(135°)?

Back

-1

Front

What is the definition of the cosine function in terms of the unit circle?

Back

Cosine of an angle is the x-coordinate of the point on the unit circle corresponding to that angle.

Front

What is the definition of the sine function in terms of the unit circle?

Back

Sine of an angle is the y-coordinate of the point on the unit circle corresponding to that angle.

Front

What is the relationship between sine and cosine for complementary angles?

Back

sin(θ) = cos(90° - θ) and cos(θ) = sin(90° - θ).

Front

What is the value of sin(330°)?

Back

-1/2

Front

What is the value of cos(135°)?

Back

-√2/2