FST Ch 5 Review

Front

What are the trigonometric functions that have a period of 2π?

Back

The trigonometric functions that have a period of 2π are sin x, cos x, csc x, and sec x.

Front

If cos(θ) = 0.6 and -π < θ < 0, what is cos(-θ)?

Back

cos(-θ) = 0.6.

Front

Find the length of side BC if the answer is 16 ft.

Back

BC = 16 ft.

Front

If sin(θ) = -\frac{\sqrt{3}}{4} and θ is in the 4th quadrant, what is cos(θ)?

Back

cos(θ) = \frac{\sqrt{13}}{4}.

Front

Find θ if sin(θ) = -\frac{\sqrt{3}}{2} and θ is in Quadrant III.

Back

θ = \frac{4π}{3}.

Front

What is the period of the tangent function?

Back

The period of the tangent function is π.

Front

Define the sine function in terms of a right triangle.

Back

In a right triangle, the sine of an angle is the ratio of the length of the opposite side to the length of the hypotenuse.

Front

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

Back

For complementary angles, sin(θ) = cos(90° - θ).

Front

What is the value of sin(0)?

Back

sin(0) = 0.

Front

What is the value of cos(π)?

Back

cos(π) = -1.