2 6*x - asec(5*x)
6*x^2 - asec(5*x)
1 12*x - --------------------- ___________ 2 / 1 5*x * / 1 - ----- / 2 \/ 25*x
1 2 12 + --------------------- + --------------------- 3/2 ___________ 5 / 1 \ 3 / 1 125*x *|1 - -----| 5*x * / 1 - ----- | 2| / 2 \ 25*x / \/ 25*x