/ _________\ asin\\/ 4*x + 2 /
asin(sqrt(4*x + 2))
2 ------------------------ __________ _________ \/ -1 - 4*x *\/ 4*x + 2
___ / 1 2 \ \/ 2 *|- ------- + --------| \ 1 + 2*x -1 - 4*x/ ---------------------------- _________ __________ \/ 1 + 2*x *\/ -1 - 4*x
___ / 3 12 4 \ \/ 2 *|---------- + ----------- - --------------------| | 2 2 (1 + 2*x)*(-1 - 4*x)| \(1 + 2*x) (-1 - 4*x) / ------------------------------------------------------- _________ __________ \/ 1 + 2*x *\/ -1 - 4*x