Math 3 Chapters 7 & 9 Review

Front

What is the sine function?

Back

The sine function, denoted as sin(x), is a trigonometric function that relates the angle of a right triangle to the ratio of the length of the opposite side to the length of the hypotenuse.

Front

What is the cosine function?

Back

The cosine function, denoted as cos(x), is a trigonometric function that relates the angle of a right triangle to the ratio of the length of the adjacent side to the length of the hypotenuse.

Front

What is the midline of a cosine function?

Back

The midline of a cosine function of the form y = a cos(bx) + d is the horizontal line y = d.

Front

Evaluate cos(135°).

Back

cos(135°) = -\frac{\sqrt{2}}{2}

Front

What angles correspond to sin(θ) = \frac{\sqrt{2}}{2} in the range 0° ≤ θ ≤ 360°?

Back

θ = 45° and 135°.

Front

What is the range of the sine function?

Back

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

Front

What is the range of the cosine function?

Back

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

Front

What is the period of the sine function?

Back

The period of the sine function is 360° (or 2π radians).

Front

What is the period of the cosine function?

Back

The period of the cosine function is 360° (or 2π radians).

Front

What is the tangent function?

Back

The tangent function, denoted as tan(x), is a trigonometric function that relates the angle of a right triangle to the ratio of the length of the opposite side to the length of the adjacent side.