Unit Circle Trig Practice- CW

Front

What is the definition of the unit circle?

Back

The unit circle is a circle with a radius of 1 centered at the origin (0,0) in the coordinate plane. It is used to define trigonometric functions.

Tags

CCSS.HSF.TF.A.2

Front

What is the value of sin(90°)?

Back

1

Tags

CCSS.HSF.TF.A.2

Front

What is the value of cos(0°)?

Back

1

Tags

CCSS.HSF.TF.A.2

Front

What is the value of tan(45°)?

Back

1

Tags

CCSS.HSG.SRT.C.7

Front

What is the relationship between sine and cosine for complementary angles?

Back

For complementary angles, sin(θ) = cos(90° - θ).

Tags

CCSS.HSG.SRT.C.7

Front

What is the value of sin(180°)?

Back

0

Tags

CCSS.HSF.TF.A.2

Front

What is the value of cos(180°)?

Back

-1

Tags

CCSS.HSF.TF.A.2

Front

What is the value of tan(90°)?

Back

Undefined (UND)

Tags

CCSS.HSF.TF.A.2

Front

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

Back

The sine of an angle is the y-coordinate of the point on the unit circle corresponding to that angle.

Tags

CCSS.HSF.TF.A.2

Front

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

Back

The cosine of an angle is the x-coordinate of the point on the unit circle corresponding to that angle.

Tags

CCSS.HSF.TF.A.2