HPCCC Trig UNIT 5A Practice

Front

What is the value of tan Θ if sin Θ = -5/8 in Quadrant III?

Back

tan Θ = 5√39/39.

Front

What is the value of sin(2π/3)?

Back

sin(2π/3) = √3/2.

Front

What is the value of cos(5π/4)?

Back

cos(5π/4) = -√2/2.

Front

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

Back

The order is (cosθ, sinθ).

Front

What is the value of tan(4π/3)?

Back

tan(4π/3) = √3.

Front

What is the definition of the sine function in terms of a right triangle?

Back

Sine is the ratio of the length of the opposite side to the length of the hypotenuse.

Front

What is the definition of the cosine function in terms of a right triangle?

Back

Cosine is the ratio of the length of the adjacent side to the length of the hypotenuse.

Front

What is the definition of the tangent function in terms of sine and cosine?

Back

Tangent is defined as tan(θ) = sin(θ)/cos(θ).

Front

What are the coordinates of the point on the Unit Circle at an angle of π/4?

Back

The coordinates are (√2/2, √2/2).

Front

What is the value of sin(π/6)?

Back

sin(π/6) = 1/2.