/ | | 1 | ------ dx | 2 | x + 9 | /
1 1
------ = --------------
2 / 2 \
x + 9 |/-x \ |
9*||---| + 1|
\\ 3 / // | | 1 | ------ dx | 2 = | x + 9 | /
/
|
| 1
| ---------- dx
| 2
| /-x \
| |---| + 1
| \ 3 /
|
/
----------------
9 /
|
| 1
| ---------- dx
| 2
| /-x \
| |---| + 1
| \ 3 /
|
/
----------------
9 -x
v = ---
3 /
|
| 1
| ------ dv
| 2
| 1 + v
|
/ atan(v)
------------ = -------
9 9 /
|
| 1
| ---------- dx
| 2
| /-x \
| |---| + 1
| \ 3 / /x\
| atan|-|
/ \3/
---------------- = -------
9 3 /x\
atan|-|
\3/
C + -------
3 1 / | | 1 atan(1/3) | ------ dx = --------- | 2 3 | x + 9 | / 0
0.107250184798881