/2*x - 1\
asin|-------|
| ___ |
\ \/ 3 /
asin((2*x - 1)/sqrt(3))
___
2*\/ 3
-----------------------
________________
/ 2
/ (2*x - 1)
3* / 1 - ----------
\/ 3
___
4*\/ 3 *(-1 + 2*x)
----------------------
3/2
/ 2\
| (-1 + 2*x) |
9*|1 - -----------|
\ 3 /
/ 2 \
___ | (-1 + 2*x) |
8*\/ 3 *|1 + ---------------|
| 2|
| (-1 + 2*x) |
| 1 - -----------|
\ 3 /
-----------------------------
3/2
/ 2\
| (-1 + 2*x) |
9*|1 - -----------|
\ 3 /