/ 4 \
| 2*x |
2*|1 + ------|
| 4|
\ 1 - x /
--------------
________
/ 4
\/ 1 - x
/ 4 \
3 | 6*x |
4*x *|5 + ------|
| 4|
\ 1 - x /
-----------------
3/2
/ 4\
\1 - x /