Unit Circle

Front

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

Back

x

Front

What is the value of cos(60°)?

Back

1/2

Front

What is the value of sin(2π/3)?

Back

√3/2

Front

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

Back

y

Front

In which quadrants is sinθ positive?

Back

the 1st and 2nd quadrants

Front

What is the value of sin(0°)?

Back

0

Front

What is the value of cos(0°)?

Back

1

Front

What is the value of sin(90°)?

Back

1

Front

What is the value of cos(90°)?

Back

0

Front

What is the relationship between the coordinates on the unit circle and the angles?

Back

The x-coordinate represents cos(θ) and the y-coordinate represents sin(θ).