CPM Test 6 (V12) Circular Trig 24-25 (Q15)

Front

What is a reference angle?

Back

A reference angle is the acute angle formed by the terminal side of an angle in standard position and the x-axis.

Front

How do you find the reference angle for an angle greater than 360 degrees?

Back

To find the reference angle for an angle greater than 360 degrees, subtract 360 degrees (or 2π radians) until the angle is within the range of 0 to 360 degrees.

Front

Convert 780 degrees to radians.

Back

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

Back

Front

What is the sine function?

Back

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

Front

What is the cosine function?

Back

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

Front

What is the tangent function?

Back

The tangent function, denoted as tan(θ), is a trigonometric function that represents the ratio of the sine to the cosine: tan(θ) = sin(θ)/cos(θ).

Front

How do you determine the quadrant of an angle?

Back

To determine the quadrant of an angle, consider the angle's measure and its reference angle. Angles between 0° and 90° are in the first quadrant, 90° to 180° in the second, 180° to 270° in the third, and 270° to 360° in the fourth.

Front

What is the cosecant function?

Back

The cosecant function, denoted as csc(θ), is the reciprocal of the sine function: csc(θ) = 1/sin(θ).