Cosecant of Conjugate Angle

Theorem

 * $\map \csc {2 \pi - \theta} = -\csc \theta$

where $\csc$ denotes cosecant.

That is, the cosecant of an angle is the negative of its conjugate.

Also see

 * Sine of Conjugate Angle
 * Cosine of Conjugate Angle
 * Tangent of Conjugate Angle
 * Cotangent of Conjugate Angle
 * Secant of Conjugate Angle