Unit Circle Exact Values

Front

What is the value of sec(π/2)?

Back

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Front

What is the value of cos(5π/6)?

Back

-\frac{\sqrt{3}}{2}

Front

What is the value of cos(4π/3)?

Back

-\frac{1}{2}

Front

What is the value of cos(-3π/4)?

Back

-\frac{\sqrt{2}}{2}

Front

What is the value of sin(11π/6)?

Back

-\frac{1}{2}

Front

Define the unit circle.

Back

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

Front

What are the coordinates of the point on the unit circle at an angle of π/3?

Back

(\frac{1}{2}, \frac{\sqrt{3}}{2})

Front

What are the coordinates of the point on the unit circle at an angle of 2π/3?

Back

(-\frac{1}{2}, \frac{\sqrt{3}}{2})

Front

What are the coordinates of the point on the unit circle at an angle of 3π/2?

Back

(0, -1)