Evaluating Trigonometric Functions Using the Unit Circle

Front

What is the radius of a unit circle?

Back

1

Front

What is sin 45°?

Back

√2/2

Front

What is cos 150°?

Back

-√3/2

Front

What is tan(7π/6)?

Back

√3/3

Front

In which quadrants is sinθ positive?

Back

the 1st and 2nd quadrants

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 tan 45°?

Back

1

Front

What is the value of sin 30°?

Back

1/2

Front

What is the value of cos 60°?

Back

1/2