FST Ch 4 Trig Review

Front

What is the value of cosine at 135°?

Back

-√2 /2

Front

What is the amplitude of a sine or cosine graph?

Back

The amplitude is the maximum distance from the midline to the peak or trough of the graph. For example, if the graph reaches a maximum of 3 and a minimum of -3, the amplitude is 3.

Front

In which quadrant is tangent > 0 and cosine < 0?

Back

Quadrant 2.

Front

What are co-terminal angles?

Back

Co-terminal angles are angles that share the same terminal side when drawn in standard position. For example, 330° and -30° are co-terminal.

Front

What is the value of cos(4π/3)?

Back

-1/2

Front

Define amplitude in the context of trigonometric functions.

Back

Amplitude is the height of the wave from the midline to the peak. It indicates how far the graph rises and falls.

Front

What is the range of the sine function?

Back

The range of the sine function is [-1, 1].

Front

What is the value of sine at 90°?

Back

1.

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 tan(45°)?

Back

1.