Unit Circle & Functions
Degrees
Radians
Functions
sin θ
cos θ
tan θ
Values
sin θ =
0.000
cos θ =
1.000
tan θ =
0.000
Reciprocal Functions
csc θ =
∞
sec θ =
1.000
cot θ =
∞
Special Angles
Identities:
sin²θ + cos²θ = 1
tan θ = sin θ / cos θ
1 + tan²θ = sec²θ
sin²θ + cos²θ = 1
tan θ = sin θ / cos θ
1 + tan²θ = sec²θ
0
Angles
0
Quadrants