/ | | 1 | ------ dx | 2 | 7 + x | /
1 1
------ = --------------------
2 / 2 \
7 + x |/ ___ \ |
||-\/ 7 | |
7*||-------*x| + 1|
\\ 7 / // | | 1 | ------ dx | 2 = | 7 + x | /
/
|
| 1
| ---------------- dx
| 2
| / ___ \
| |-\/ 7 |
| |-------*x| + 1
| \ 7 /
|
/
----------------------
7 /
|
| 1
| ---------------- dx
| 2
| / ___ \
| |-\/ 7 |
| |-------*x| + 1
| \ 7 /
|
/
----------------------
7 ___
-x*\/ 7
v = ---------
7 /
|
| 1
| ------ dv
| 2
| 1 + v
|
/ atan(v)
------------ = -------
7 7 /
|
| 1
| ---------------- dx
| 2
| / ___ \
| |-\/ 7 |
| |-------*x| + 1 / ___\
| \ 7 / ___ |x*\/ 7 |
| \/ 7 *atan|-------|
/ \ 7 /
---------------------- = -------------------
7 7 / ___\
___ |x*\/ 7 |
\/ 7 *atan|-------|
\ 7 /
C + -------------------
7 1 / ___\ / ___ |\/ 7 | | \/ 7 *atan|-----| | 1 \ 7 / | ------ dx = ----------------- | 2 7 | 7 + x | / 0
0.136583934550259