1 / | | x + 2 | ------ dx | 2 | x + 4 | / 0
/ | | x + 2 | 1*------ dx | 2 | x + 4 | /
/ 1*2*x + 0 \
|--------------| /2\
| 2 | |-|
x + 2 \1*x + 0*x + 4/ \4/
------ = ---------------- + --------------
2 2 2
x + 4 / x \
|- - + 0| + 1
\ 2 / / | | x + 2 | 1*------ dx | 2 = | x + 4 | /
/
|
| 1 /
| -------------- dx |
| 2 | 1*2*x + 0
| / x \ | -------------- dx
| |- - + 0| + 1 | 2
| \ 2 / | 1*x + 0*x + 4
| |
/ /
-------------------- + --------------------
2 2 /
|
| 1*2*x + 0
| -------------- dx
| 2
| 1*x + 0*x + 4
|
/
--------------------
2 2 u = x
/
|
| 1
| ----- du
| 4 + u
|
/ log(4 + u)
----------- = ----------
2 2 /
|
| 1*2*x + 0
| -------------- dx
| 2
| 1*x + 0*x + 4
| / 2\
/ log\4 + x /
-------------------- = -----------
2 2 /
|
| 1
| -------------- dx
| 2
| / x \
| |- - + 0| + 1
| \ 2 /
|
/
--------------------
2 -x
v = ---
2 /
|
| 1
| ------ dv
| 2
| 1 + v
|
/ atan(v)
------------ = -------
2 2 /
|
| 1
| -------------- dx
| 2
| / x \
| |- - + 0| + 1
| \ 2 /
|
/ /x\
-------------------- = atan|-|
2 \2/ / 2\
log\4 + x / /x\
C + ----------- + atan|-|
2 \2// | / 2\ | x + 2 log\4 + x / /x\ | ------ dx = C + ----------- + atan|-| | 2 2 \2/ | x + 4 | /
log(5) log(4) ------ - ------ + atan(1/2) 2 2
=
log(5) log(4) ------ - ------ + atan(1/2) 2 2
Данные примеры также можно применять при вводе верхнего и нижнего предела интегрирования.