1 / | | x + 3 | ------ dx | 2 | x + 4 | / 0
/ | | x + 3 | 1*------ dx | 2 | x + 4 | /
/ 1*2*x + 0 \
|--------------| /3\
| 2 | |-|
x + 3 \1*x + 0*x + 4/ \4/
------ = ---------------- + --------------
2 2 2
x + 4 / x \
|- - + 0| + 1
\ 2 / / | | x + 3 | 1*------ dx | 2 = | x + 4 | /
/
|
/ | 1
| 3* | -------------- dx
| 1*2*x + 0 | 2
| -------------- dx | / x \
| 2 | |- - + 0| + 1
| 1*x + 0*x + 4 | \ 2 /
| |
/ /
-------------------- + ----------------------
2 4 /
|
| 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
3* | -------------- dx
| 2
| / x \
| |- - + 0| + 1
| \ 2 /
|
/
----------------------
4 -x
v = ---
2 /
|
| 1
3* | ------ dv
| 2
| 1 + v
|
/ 3*atan(v)
-------------- = ---------
4 4 /
|
| 1
3* | -------------- dx
| 2
| / x \
| |- - + 0| + 1
| \ 2 / /x\
| 3*atan|-|
/ \2/
---------------------- = ---------
4 2 /x\
/ 2\ 3*atan|-|
log\4 + x / \2/
C + ----------- + ---------
2 2 / /x\ | / 2\ 3*atan|-| | x + 3 log\4 + x / \2/ | ------ dx = C + ----------- + --------- | 2 2 2 | x + 4 | /
log(5) log(4) 3*atan(1/2) ------ - ------ + ----------- 2 2 2
=
log(5) log(4) 3*atan(1/2) ------ - ------ + ----------- 2 2 2
Данные примеры также можно применять при вводе верхнего и нижнего предела интегрирования.