/ | | 2 | ------ dx | 2 | x + 4 | /
2 1
------ = --------------
2 / 2 \
x + 4 |/-x \ |
2*||---| + 1|
\\ 2 / // | | 2 | ------ dx | 2 = | x + 4 | /
/
|
| 1
| ---------- dx
| 2
| /-x \
| |---| + 1
| \ 2 /
|
/
----------------
2 /
|
| 1
| ---------- dx
| 2
| /-x \
| |---| + 1
| \ 2 /
|
/
----------------
2 -x
v = ---
2 /
|
| 1
| ------ dv
| 2
| 1 + v
|
/ atan(v)
------------ = -------
2 2 /
|
| 1
| ---------- dx
| 2
| /-x \
| |---| + 1
| \ 2 /
|
/ /x\
---------------- = atan|-|
2 \2/ /x\
C + atan|-|
\2/1 / | | 2 | ------ dx = atan(1/2) | 2 | x + 4 | / 0
0.463647609000806