Unit Circle - Basic Angles

Study flashcards for the basic angles of the unit circle with all trigonometric functions.

sin(0)

0

cos(0)

1

tan(0)

0

csc(0)

Undefined

sec(0)

1

cot(0)

Undefined

sin(π/3)

√3/2

cos(π/3)

1/2

tan(π/3)

√3

csc(π/3)

2/√3 or 2√3/3

sec(π/3)

2

cot(π/3)

1/√3 or √3/3

sin(π/4)

1/√2 or √2/2

cos(π/4)

1/√2 or √2/2

tan(π/4)

1

csc(π/4)

√2

sec(π/4)

√2

cot(π/4)

1

sin(π/6)

1/2

cos(π/6)

√3/2

tan(π/6)

1/√3 or √3/3

csc(π/6)

2

sec(π/6)

2/√3 or 2√3/3

cot(π/6)

√3

sin(π/2)

1

cos(π/2)

0

tan(π/2)

Undefined

csc(π/2)

1

sec(π/2)

Undefined

cot(π/2)

0

sin(π)

0

cos(π)

-1

tan(π)

0

csc(π)

Undefined

sec(π)

-1

cot(π)

Undefined

sin(3π/2)

-1

cos(3π/2)

0

tan(3π/2)

Undefined

csc(3π/2)

-1

sec(3π/2)

Undefined

cot(3π/2)

0

sin(2π)

0

cos(2π)

1

tan(2π)

0

csc(2π)

Undefined

sec(2π)

1

cot(2π)

Undefined