Primitive of Arccosine of x over a

Theorem

 * $\displaystyle \int \arccos \frac x a \ \mathrm d x = x \arccos \frac x a - \sqrt {a^2 - x^2} + C$

Also see

 * Primitive of $\arcsin \dfrac x a$
 * Primitive of $\arctan \dfrac x a$
 * Primitive of $\operatorname{arccot} \dfrac x a$
 * Primitive of $\operatorname{arcsec} \dfrac x a$
 * Primitive of $\operatorname{arccsc} \dfrac x a$