x*acos(1 - 4*x)
x*acos(1 - 4*x)
4*x ------------------- + acos(1 - 4*x) ________________ / 2 \/ 1 - (1 - 4*x)
/ 2*x*(-1 + 4*x)\ 8*|1 + --------------| | 2| \ 1 - (1 - 4*x) / ---------------------- ________________ / 2 \/ 1 - (1 - 4*x)
/ / 2 \\ | | 3*(-1 + 4*x) || 16*|-3 + 12*x - 4*x*|-1 + ----------------|| | | 2|| \ \ -1 + (-1 + 4*x) // -------------------------------------------- 3/2 / 2\ \1 - (1 - 4*x) /