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Unit Circle
Coterminal Angles
+ or - 360 degrees
+ or - 2 pi
Degrees->Radians pi divided by 180 Radians->Degrees 180 divided by pi
Sine Opposite Hypotenuse Cosine Adjacent Hypotenuse Tangent Opposite Adjacent
Identities
Reciprocal: Sin X=1/Csc X Cos X=1/Sec X Tan X=1/Cot X Csc X=1/Sin X Sec X=1/CosX Cot X=1/Tan X
Pythagorean: Sin^2X +Cos^2X=1 1+Tan^2X=Sec^2X 1+Cot^2X=Csc^2X
Quotient: TanX= SinX/CosX CotX= CosX/SinX
