Trigonometry (HM3)

Front

Convert 180° to radians.

Back

π

Front

What is the initial direction of the cosine function?

Back

down

Front

In which quadrants is cosθ positive?

Back

the 1st and 4th quadrants

Front

What does the amplitude of a sine or cosine graph represent?

Back

half the distance between the maximum and minimum values.

Front

How do you find the period of a sine or cosine graph?

Back

The period can be found using the formula 2π/B, where B is the coefficient of x.

Front

What is the range of the sine function?

Back

[-1, 1]

Front

What is the range of the cosine function?

Back

[-1, 1]

Front

What is the phase shift of the function y = sin(x - π/2)?

Back

π/2 to the right.

Front

What is the vertical shift of the function y = sin(x) + 3?

Back

3 units up.

Front

What is the relationship between the sine and cosine functions?

Back

sin(θ) = cos(90° - θ).