Trig Applications and Unit Circle Quick Check

Front

What is the value of cos(5π/3)?

Back

1/2

Tags

CCSS.HSF.TF.A.2

Front

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

Back

(−√2∕2, √2∕2)

Tags

CCSS.HSF.TF.A.2

Front

What is the value of sin(π/2)?

Back

1

Tags

CCSS.HSF.TF.A.2

Front

What is the value of cos(30°)?

Back

√3/2

Tags

CCSS.HSF.TF.A.2

Front

What is 7π/4 radians in degrees?

Back

315°

Tags

CCSS.HSF.TF.A.1

Front

Define the unit circle.

Back

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

Tags

CCSS.HSF.TF.A.2

Front

What is the sine of an angle in the unit circle?

Back

The y-coordinate of the point where the terminal side of the angle intersects the unit circle.

Tags

CCSS.HSF.TF.A.2

Front

What is the cosine of an angle in the unit circle?

Back

The x-coordinate of the point where the terminal side of the angle intersects the unit circle.

Tags

CCSS.HSF.TF.A.2

Front

What is the relationship between degrees and radians?

Back

180° is equivalent to π radians.

Tags

CCSS.HSF.TF.A.1

Front

What is the value of cos(π)?

Back

-1

Tags

CCSS.HSF.TF.A.2