/ / 8 16 \ \
| 3 | 56862*x 344373768*x | / 8 \|
| 324*x*(2 + x) *|1 - ------------ + ---------------| 2 2 | 8748*x ||
| | 8 2| 3402*x *(2 + x) *|-1 + ------------||
| 3 | -1 + 6561*x / 8\ | | 8||
4 | / 4\ 6804*x *(2 + x) \ \-1 + 6561*x / / \ -1 + 6561*x /|
6*(2 + x) *|35*acos\(3*x) / - ---------------- - --------------------------------------------------- + ------------------------------------|
| _____________ _____________ _____________ |
| / 8 / 8 / 8 |
\ \/ 1 - 6561*x \/ 1 - 6561*x \/ 1 - 6561*x /