Precalc Unit 3 Review

Front

What is the value of sin(330°)?

Back

sin(330°) = -\frac{1}{2}

Front

Convert -\frac{\pi}{3} into degrees.

Back

-60°

Front

What is the value of cos(0)?

Back

cos(0) = 1

Front

Find the measure of the angle that corresponds to 66.9°.

Back

66.9°

Front

What is the value of sin(210°)?

Back

sin(210°) = -\frac{1}{2}

Front

What is the sine function?

Back

The sine function relates the angle of a right triangle to the ratio of the length of the opposite side to the hypotenuse.

Front

What is the cosine function?

Back

The cosine function relates the angle of a right triangle to the ratio of the length of the adjacent side to the hypotenuse.

Front

What is the tangent function?

Back

The tangent function relates the angle of a right triangle to the ratio of the length of the opposite side to the adjacent side.

Front

What is the unit circle?

Back

The unit circle is a circle with a radius of 1 centered at the origin of a coordinate plane, used to define trigonometric functions.

Front

What is the relationship between degrees and radians?

Back

180° is equivalent to \pi radians.