Trig. Using exact values with Unit Circle

Front

What is the value of cos(60°)?

Back

1/2

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

Convert π/4 to degrees.

Back

45°

Front

What is the value of sin(π/4)?

Back

√2∕2

Front

What is the value of sin(30°)?

Back

1/2

Front

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

Back

(1/2, √3/2)

Front

What is the value of cos(π/2)?

Back

0

Front

What is the value of sin(90°)?

Back

1

Front

What are the exact coordinates of π/6 on the unit circle?

Back

(√3/2, 1/2)