/ 2\ / 4\ 5*\-x /*acos\5*x /
(5*(-x^2))*acos(5*x^4)
5 / 4\ 100*x - 10*x*acos\5*x / + -------------- ___________ / 8 \/ 1 - 25*x
/ / 8 \\ | 4 | 100*x || | 10*x *|-3 + ----------|| | 4 | 8|| | / 4\ 40*x \ -1 + 25*x /| 10*|- acos\5*x / + -------------- - -----------------------| | ___________ ___________ | | / 8 / 8 | \ \/ 1 - 25*x \/ 1 - 25*x /
/ 8 16 \ 3 | 950*x 15000*x | 200*x *|15 - ---------- + -------------| | 8 2| | -1 + 25*x / 8\ | \ \-1 + 25*x / / ---------------------------------------- ___________ / 8 \/ 1 - 25*x