Primitive of Arcsecant of x over a

Also see

 * Primitive of $\arcsin \dfrac x a$


 * Primitive of $\arccos \dfrac x a$


 * Primitive of $\arctan \dfrac x a$


 * Primitive of $\operatorname{arccot} \dfrac x a$


 * Primitive of $\operatorname{arccsc} \dfrac x a$