Unit Circle

Front

What is the value of sin(π/4)?

Back

√2/2

Front

What is the value of cos(5π/6)?

Back

-√3/2

Front

What is the value of cos(4π/3)?

Back

-1/2

Front

In the unit circle, what does cos(θ) represent?

Back

x

Front

In which quadrants is sin(θ) positive?

Back

the 1st and 2nd quadrants

Front

What is the value of sin(π/3)?

Back

√3/2

Front

What is the value of cos(π/3)?

Back

1/2

Front

What is the value of sin(2π/3)?

Back

√3/2

Front

What is the value of cos(7π/6)?

Back

-√3/2

Front

What is the value of sin(3π/2)?

Back

-1