12-9 Unit Circle Practice

Front

What is the value of cos(60°)?

Back

1/2

Front

What is the value of sin(150°)?

Back

1/2

Front

What is the value of sin(π/4)?

Back

√2/2

Front

Why is the unit circle called the unit circle?

Back

Because its radius is equal to one.

Front

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

Back

(−√2/2, √2/2)

Front

What is the value of cos(0°)?

Back

1

Front

What is the value of sin(90°)?

Back

1

Front

What is the value of cos(90°)?

Back

0

Front

What is the value of sin(0°)?

Back

0

Front

What is the value of cos(30°)?

Back

√3/2