Unit Circle Trig 3

Front

What is the value of cos(30°)?

Back

√3/2

Front

What is the value of cos(π/4)?

Back

√2/2

Front

What is the value of tan(3π/4)?

Back

-1

Front

What angle corresponds with the ordered pair (0, -1) on the unit circle?

Back

Front

What is the value of sin(π/2)?

Back

1

Front

Define the unit circle.

Back

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

Front

What is the relationship between the coordinates of a point on the unit circle and the cosine and sine functions?

Back

For a point (x, y) on the unit circle, x = cos(θ) and y = sin(θ) for an angle θ.

Front

What is the value of sin(30°)?

Back

1/2

Front

What is the value of cos(0°)?

Back

1

Front

What is the value of tan(0°)?

Back

0