Primitive of Square of Cosecant of a x

Theorem

 * $\ds \int \csc^2 a x \rd x = -\frac {\cot a x} a + C$

Also see

 * Primitive of $\sin^2 a x$
 * Primitive of $\cos^2 a x$
 * Primitive of $\tan^2 a x$
 * Primitive of $\cot^2 a x$
 * Primitive of $\sec^2 a x$