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.