sin(theta) =
1/Csc(theta)
Cos(theta)=
1/Sec(theta)
Tan(theta)=
1/Cot(theta)
Csc(theta) =
1/Sin(theta)
Sec(theta)=
1/Cos(theta)
Cot(theta)=
1/Tan(theta)
Tan(theta) =
Sin(theta)/Cos(theta)
Cot(theta)=
Cos(theta)/Sin(theta)
Tan(theta)Cos(theta)=
Sin(theta)
Cot(theta)Sin(theta)=
Cos(theta)
Cos(theta)=
Sin(theta)/Tan(theta)
Sin(theta)=
Cos(theta)/Cot(theta)
Sin^2(Theta) + Cos^2(theta)=
1
1 + Tan^2(theta)=
Sec^2(theta)
1 + Cot^2(theta) =
Csc^2(theta)
Sin^2(theta)=
1 - Cos^2(theta)
Tan^2(theta)=
Sec^2(theta0 - 1
Cot^2(theta)=
Csc^2(theta) - 1
Cos^2(theta) =
1 - sin^2(theta)
1(top)=
Sec^2(theta) - Tan^2(theta)
1(bottom)=
Csc^2(theta) - Cot^2(theta)