Unit Circle Quadrant I

sin(0°)

0

sin(30°)

1/2

sin(45°)

√2/2

sin(60°)

√3/2

sin(90°)

1

cos(0°)

1

cos(30°)

√3/2

cos(45°)

√2/2

cos(60°)

1/2

cos(90°)

0

tan(0°)

0

tan(30°)

√3/3

tan(45°)

1

tan(60°)

√3

tan(90°)

undefined

csc(0°)

undefined

csc(30°)

2

csc(45°)

√2

csc(60°)

2√3/3

csc(90°)

1

sec(0°)

1

sec(30°)

2√3/3

sec(45°)

√2

sec(60°)

2

sec(90°)

undefined

cot(0°)

undefined

cot(30°)

√3

cot(45°)

1

cot(60°)

√3/3

cot(90°)

0

sin(π/6)

1/2

sin(π/4)

√2/2

sin(π/3)

√3/2

sin(π/2)

1

cos(π/6)

√3/2

cos(π/4)

√2/2

cos(π/3)

1/2

cos(π/2)

0

tan(π/6)

√3/3

tan(π/4)

1

tan(π/3)

√3

tan(π/2)

undefined

csc(π/6)

2

csc(π/4)

√2

csc(π/3)

2√3/3

csc(π/2)

1

sec(π/6)

2√3/3

sec(π/4)

√2

sec(π/3)

2

sec(π/2)

undefined

cot(π/6)

√3

cot(π/4)

1

cot(π/3)

√3/3

cot(π/2)

0