Primitive of Cube of Cosine of a x

Theorem

 * $\displaystyle \int \cos^3 a x \ \mathrm d x = \frac {\sin a x} a - \frac {\sin^3 a x} {3 a} + C$

Also see

 * Primitive of $\sin^3 a x$
 * Primitive of $\tan^3 a x$
 * Primitive of $\cot^3 a x$
 * Primitive of $\sec^3 a x$
 * Primitive of $\csc^3 a x$