Precalc Unit 3 Review

Front

What is a coterminal angle?

Back

Coterminal angles are angles that share the same terminal side when drawn in standard position. To find a coterminal angle, you can add or subtract multiples of 360 degrees (or 2π radians).

Front

Find a coterminal angle to -180 degrees.

Back

180 degrees is a coterminal angle to -180 degrees.

Front

What is the radius of the unit circle?

Back

The radius of the unit circle is 1.

Front

What is the relationship between secant and cosine?

Back

Front

Back

Front

What is the formula to convert degrees to radians?

Back

Front

Convert -570 degrees into radians.

Back

Front

What is the sine of an angle in a right triangle?

Back

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 cosine of an angle in a right triangle?

Back

The cosine of an angle is the ratio of the length of the adjacent side to the length of the hypotenuse.

Front

What is the tangent of an angle in a right triangle?

Back

The tangent of an angle is the ratio of the length of the opposite side to the length of the adjacent side.