/ 1 \ -25*|5*x + -----------| \ 4*atan(5*x)/ -------------------------- 2 / 2\ ___________ \1 + 25*x / *\/ atan(5*x)
/ 2 \ | 100*x 3 15*x | 125*|-1 + --------- + ------------------------ + -----------------------| | 2 / 2\ 2 / 2\ | \ 1 + 25*x 8*\1 + 25*x /*atan (5*x) 2*\1 + 25*x /*atan(5*x)/ ------------------------------------------------------------------------- 2 / 2\ ___________ \1 + 25*x / *\/ atan(5*x)