Unit Circle

Front

What is the value of sin 150°?

Back

1/2

Front

What is the value of cos 90°?

Back

0

Front

What is the value of sec 135°?

Back

-√2

Front

What is the value of cos 135°?

Back

-√2/2

Front

What is the definition of the unit circle?

Back

A circle with a radius of 1 centered at the origin of a coordinate plane.

Front

What is the relationship between sine and cosine on the unit circle?

Back

sin(θ) = y-coordinate, cos(θ) = x-coordinate of the point on the unit circle.

Front

What is the value of sin 30°?

Back

1/2

Front

What is the value of cos 60°?

Back

1/2

Front

What is the value of tan 45°?

Back

1

Front

What is the value of sin 90°?

Back

1