/ 1 \ 25*|- --------- + 10*x| \ acot(5*x) / ----------------------- 2 / 2\ \1 + 25*x / *acot(5*x)
/ 2 \ | 1 100*x 15*x | 250*|1 - ---------------------- - --------- + ---------------------| | / 2\ 2 2 / 2\ | \ \1 + 25*x /*acot (5*x) 1 + 25*x \1 + 25*x /*acot(5*x)/ -------------------------------------------------------------------- 2 / 2\ \1 + 25*x / *acot(5*x)