Unit Circle Flashcard

Front

What is the value of sin(90°)?

Back

1

Front

What are the exact coordinates of 3π/4 on the unit circle?

Back

(−√2/2, √2/2)

Front

What is the value of sin(2π/3)?

Back

√3/2

Front

What is the reference angle for -210°?

Back

30°

Front

What is the value of cos(0°)?

Back

1

Front

What are the coordinates of the point at 0 radians on the unit circle?

Back

(1, 0)

Front

What is the value of tan(45°)?

Back

1

Front

What is the value of sin(π/2)?

Back

1

Front

What are the coordinates of the point at π radians on the unit circle?

Back

(-1, 0)

Front

What is the value of cos(π/3)?

Back

1/2