Trigonometric Functions

Definitions

100

Opposite/Hypotenuse

What is sine?

200

The 6 Trigonometric Functions

What is sine, cosine, tangent, secant, cosecant, and cotangent?

300

We use this to find the exact trigonometric function. Has a radius of 1 unit

What is Unit Circle

400

The positive acute angle formed between the terminal side of an angle and the x-axis

What is Reference Angle

500

The unit for measuring angles. Ex. (3*pi)/2

Radians

Exact Trig Functions

100

What is cosine of 240 degrees

What is -1/2

200

Sine is positive in this quadrant

What is quadrant 1 and 2

300

Cotangent of an angle if the sine of the angle is 3/5

What is 4/3

400

Cosine of 45 degrees

What is (Sq Rt 2)/2

500

This is the name of the angle that is 60 degrees past the 90 degree angle on the unit circle.

What is 150 degrees

Exact Trig Functions continued

100

Value of the Hypotenuse Leg 1=1.5 Leg=2

What is 2.5

200

The exact value of sine 330 degrees

What is -1/2

300

The exact value of tangent 5pi/4

What is 1?

400

If the secant of an acute angle in a right triangle is 2, the trigonometric function that has a value of 0.5 is

What is cosine?

500

This trigonometric function has the value of 90 degrees as undefined

What is Tangent

Radians

100

convert -125 to radians

What is -25pi/36

200

Convert 13pi/6 radians to degrees

What is 390?

300

Convert 120 degrees into radians

What is 2pi/3

400

Convert 7pi/4 into degrees

What is 315?

500

Find the exact value of sin 30

What is 1/2?