Unit Circle Practice

Front

What is a complete circle in radians?

Back

2π

Front

What is the value of sine at 210°?

Back

-1/2

Front

What is the value of cosine at 135°?

Back

-√2 /2

Front

sin π/4

Back

√2∕2

Front

cos 5π/6

Back

-√3/2

Front

sin 7π/6

Back

-1/2

Front

cos 4π/3

Back

-1/2

Front

sin 2π/3

Back

√3/2

Front

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

Back

(−√2∕2, √2∕2)

Front

tan 7π/4

Back

-1