A3 Units 3/4/5 (Trig) Final Review

Front

What is the value of cos based on the unit circle?

Back

x

Front

What is the value of cos(5π/3)?

Back

1/2

Front

How do you set up the equation using the sine rule for angles 60° and 40° with a side of 20?

Back

Front

What is the value of sin(π/2)?

Back

1

Front

What is the value of tan based on the unit circle?

Back

y/x

Front

Define the unit circle in trigonometry.

Back

A circle with a radius of 1 centered at the origin (0,0) in the coordinate plane.

Front

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

Back

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 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 ratio of the length of the opposite side to the length of the adjacent side.

Front

What is the Pythagorean identity in trigonometry?

Back