Integral de (a*x^2+b*x+c)/(x^3-8) dx
Solución
Respuesta (Indefinida)
[src]
/ / ___ \
| / c\ / 2 \ ___ |\/ 3 *(1 + x)|
| 2 |-b + 4*a - -|*log\4 + x + 2*x/ \/ 3 *(-3*c + 6*b)*atan|-------------|
| a*x + b*x + c /a b c \ \ 2/ \ 3 /
| -------------- dx = C + |- + - + --|*log(-2 + x) + -------------------------------- + --------------------------------------
| 3 \3 6 12/ 12 36
| x - 8
|
/
∫x3−8c+(ax2+bx)dx=C+363(6b−3c)atan(33(x+1))+(3a+6b+12c)log(x−2)+12(4a−b−2c)log(x2+2x+4)
/ 2 \ / 2 \ / 2 \ / 2 \ / 2 2 2 2 2 \ / 2 2 2 2 2 \
| / ___ \ / ___ \ / ___ \| | / ___ \ / ___ \ / ___ \| | / ___ \ / ___ \ / ___ \| | / ___ \ / ___ \ / ___ \| |- 64*b*a - 8*a*c - 4*b*(c + 2*b + 4*a) + 2*c *(c + 2*b + 4*a) + 16*c*b + 32*a*b*(c + 2*b + 4*a)| | - 64*b*a - 8*a*c - 4*b*(c + 2*b + 4*a) + 2*c *(c + 2*b + 4*a) + 16*c*b + 32*a*b*(c + 2*b + 4*a)|
| | b c a I*\/ 3 *(-c + 2*b)| 2 2 2 2 | b c a I*\/ 3 *(-c + 2*b)| | b c a I*\/ 3 *(-c + 2*b)|| | | b c a I*\/ 3 *(-c + 2*b)| 2 2 2 2 | b c a I*\/ 3 *(-c + 2*b)| | b c a I*\/ 3 *(-c + 2*b)|| | | b c a I*\/ 3 *(-c + 2*b)| 2 2 2 2 | b c a I*\/ 3 *(-c + 2*b)| | b c a I*\/ 3 *(-c + 2*b)|| | | b c a I*\/ 3 *(-c + 2*b)| 2 2 2 2 | b c a I*\/ 3 *(-c + 2*b)| | b c a I*\/ 3 *(-c + 2*b)|| (c + 2*b + 4*a)*log|---------------------------------------------------------------------------------------------------| (c + 2*b + 4*a)*log|1 + ---------------------------------------------------------------------------------------------------|
/ ___ \ | - 576*b*|- -- - -- + - - ------------------| - 64*b*a - 8*a*c + 16*c*b + 24*c *|- -- - -- + - - ------------------| + 384*a*b*|- -- - -- + - - ------------------|| / ___ \ | - 576*b*|- -- - -- + - + ------------------| - 64*b*a - 8*a*c + 16*c*b + 24*c *|- -- - -- + - + ------------------| + 384*a*b*|- -- - -- + - + ------------------|| / ___ \ |- 576*b*|- -- - -- + - - ------------------| - 64*b*a - 8*a*c + 16*c*b + 24*c *|- -- - -- + - - ------------------| + 384*a*b*|- -- - -- + - - ------------------|| / ___ \ |- 576*b*|- -- - -- + - + ------------------| - 64*b*a - 8*a*c + 16*c*b + 24*c *|- -- - -- + - + ------------------| + 384*a*b*|- -- - -- + - + ------------------|| | 3 3 | | 3 3 |
| b c a I*\/ 3 *(-c + 2*b)| | \ 12 24 3 24 / \ 12 24 3 24 / \ 12 24 3 24 /| | b c a I*\/ 3 *(-c + 2*b)| | \ 12 24 3 24 / \ 12 24 3 24 / \ 12 24 3 24 /| | b c a I*\/ 3 *(-c + 2*b)| | \ 12 24 3 24 / \ 12 24 3 24 / \ 12 24 3 24 /| | b c a I*\/ 3 *(-c + 2*b)| | \ 12 24 3 24 / \ 12 24 3 24 / \ 12 24 3 24 /| \ - c + 8*b / \ - c + 8*b /
|- -- - -- + - - ------------------|*log|1 + ----------------------------------------------------------------------------------------------------------------------------------------------------------------------| + |- -- - -- + - + ------------------|*log|1 + ----------------------------------------------------------------------------------------------------------------------------------------------------------------------| - |- -- - -- + - - ------------------|*log|----------------------------------------------------------------------------------------------------------------------------------------------------------------------| - |- -- - -- + - + ------------------|*log|----------------------------------------------------------------------------------------------------------------------------------------------------------------------| - ------------------------------------------------------------------------------------------------------------------------ + ----------------------------------------------------------------------------------------------------------------------------
\ 12 24 3 24 / | 3 3 | \ 12 24 3 24 / | 3 3 | \ 12 24 3 24 / | 3 3 | \ 12 24 3 24 / | 3 3 | 12 12
\ - c + 8*b / \ - c + 8*b / \ - c + 8*b / \ - c + 8*b /
−12(4a+2b+c)log(8b3−c3−64a2b+32ab(4a+2b+c)−8ac2+16b2c−4b(4a+2b+c)2+2c2(4a+2b+c))+12(4a+2b+c)log(1+8b3−c3−64a2b+32ab(4a+2b+c)−8ac2+16b2c−4b(4a+2b+c)2+2c2(4a+2b+c))−(3a−12b−24c−243i(2b−c))log8b3−c3−64a2b+384ab(3a−12b−24c−243i(2b−c))−8ac2+16b2c−576b(3a−12b−24c−243i(2b−c))2+24c2(3a−12b−24c−243i(2b−c))+(3a−12b−24c−243i(2b−c))log1+8b3−c3−64a2b+384ab(3a−12b−24c−243i(2b−c))−8ac2+16b2c−576b(3a−12b−24c−243i(2b−c))2+24c2(3a−12b−24c−243i(2b−c))−(3a−12b−24c+243i(2b−c))log8b3−c3−64a2b+384ab(3a−12b−24c+243i(2b−c))−8ac2+16b2c−576b(3a−12b−24c+243i(2b−c))2+24c2(3a−12b−24c+243i(2b−c))+(3a−12b−24c+243i(2b−c))log1+8b3−c3−64a2b+384ab(3a−12b−24c+243i(2b−c))−8ac2+16b2c−576b(3a−12b−24c+243i(2b−c))2+24c2(3a−12b−24c+243i(2b−c))
=
/ 2 \ / 2 \ / 2 \ / 2 \ / 2 2 2 2 2 \ / 2 2 2 2 2 \
| / ___ \ / ___ \ / ___ \| | / ___ \ / ___ \ / ___ \| | / ___ \ / ___ \ / ___ \| | / ___ \ / ___ \ / ___ \| |- 64*b*a - 8*a*c - 4*b*(c + 2*b + 4*a) + 2*c *(c + 2*b + 4*a) + 16*c*b + 32*a*b*(c + 2*b + 4*a)| | - 64*b*a - 8*a*c - 4*b*(c + 2*b + 4*a) + 2*c *(c + 2*b + 4*a) + 16*c*b + 32*a*b*(c + 2*b + 4*a)|
| | b c a I*\/ 3 *(-c + 2*b)| 2 2 2 2 | b c a I*\/ 3 *(-c + 2*b)| | b c a I*\/ 3 *(-c + 2*b)|| | | b c a I*\/ 3 *(-c + 2*b)| 2 2 2 2 | b c a I*\/ 3 *(-c + 2*b)| | b c a I*\/ 3 *(-c + 2*b)|| | | b c a I*\/ 3 *(-c + 2*b)| 2 2 2 2 | b c a I*\/ 3 *(-c + 2*b)| | b c a I*\/ 3 *(-c + 2*b)|| | | b c a I*\/ 3 *(-c + 2*b)| 2 2 2 2 | b c a I*\/ 3 *(-c + 2*b)| | b c a I*\/ 3 *(-c + 2*b)|| (c + 2*b + 4*a)*log|---------------------------------------------------------------------------------------------------| (c + 2*b + 4*a)*log|1 + ---------------------------------------------------------------------------------------------------|
/ ___ \ | - 576*b*|- -- - -- + - - ------------------| - 64*b*a - 8*a*c + 16*c*b + 24*c *|- -- - -- + - - ------------------| + 384*a*b*|- -- - -- + - - ------------------|| / ___ \ | - 576*b*|- -- - -- + - + ------------------| - 64*b*a - 8*a*c + 16*c*b + 24*c *|- -- - -- + - + ------------------| + 384*a*b*|- -- - -- + - + ------------------|| / ___ \ |- 576*b*|- -- - -- + - - ------------------| - 64*b*a - 8*a*c + 16*c*b + 24*c *|- -- - -- + - - ------------------| + 384*a*b*|- -- - -- + - - ------------------|| / ___ \ |- 576*b*|- -- - -- + - + ------------------| - 64*b*a - 8*a*c + 16*c*b + 24*c *|- -- - -- + - + ------------------| + 384*a*b*|- -- - -- + - + ------------------|| | 3 3 | | 3 3 |
| b c a I*\/ 3 *(-c + 2*b)| | \ 12 24 3 24 / \ 12 24 3 24 / \ 12 24 3 24 /| | b c a I*\/ 3 *(-c + 2*b)| | \ 12 24 3 24 / \ 12 24 3 24 / \ 12 24 3 24 /| | b c a I*\/ 3 *(-c + 2*b)| | \ 12 24 3 24 / \ 12 24 3 24 / \ 12 24 3 24 /| | b c a I*\/ 3 *(-c + 2*b)| | \ 12 24 3 24 / \ 12 24 3 24 / \ 12 24 3 24 /| \ - c + 8*b / \ - c + 8*b /
|- -- - -- + - - ------------------|*log|1 + ----------------------------------------------------------------------------------------------------------------------------------------------------------------------| + |- -- - -- + - + ------------------|*log|1 + ----------------------------------------------------------------------------------------------------------------------------------------------------------------------| - |- -- - -- + - - ------------------|*log|----------------------------------------------------------------------------------------------------------------------------------------------------------------------| - |- -- - -- + - + ------------------|*log|----------------------------------------------------------------------------------------------------------------------------------------------------------------------| - ------------------------------------------------------------------------------------------------------------------------ + ----------------------------------------------------------------------------------------------------------------------------
\ 12 24 3 24 / | 3 3 | \ 12 24 3 24 / | 3 3 | \ 12 24 3 24 / | 3 3 | \ 12 24 3 24 / | 3 3 | 12 12
\ - c + 8*b / \ - c + 8*b / \ - c + 8*b / \ - c + 8*b /
−12(4a+2b+c)log(8b3−c3−64a2b+32ab(4a+2b+c)−8ac2+16b2c−4b(4a+2b+c)2+2c2(4a+2b+c))+12(4a+2b+c)log(1+8b3−c3−64a2b+32ab(4a+2b+c)−8ac2+16b2c−4b(4a+2b+c)2+2c2(4a+2b+c))−(3a−12b−24c−243i(2b−c))log8b3−c3−64a2b+384ab(3a−12b−24c−243i(2b−c))−8ac2+16b2c−576b(3a−12b−24c−243i(2b−c))2+24c2(3a−12b−24c−243i(2b−c))+(3a−12b−24c−243i(2b−c))log1+8b3−c3−64a2b+384ab(3a−12b−24c−243i(2b−c))−8ac2+16b2c−576b(3a−12b−24c−243i(2b−c))2+24c2(3a−12b−24c−243i(2b−c))−(3a−12b−24c+243i(2b−c))log8b3−c3−64a2b+384ab(3a−12b−24c+243i(2b−c))−8ac2+16b2c−576b(3a−12b−24c+243i(2b−c))2+24c2(3a−12b−24c+243i(2b−c))+(3a−12b−24c+243i(2b−c))log1+8b3−c3−64a2b+384ab(3a−12b−24c+243i(2b−c))−8ac2+16b2c−576b(3a−12b−24c+243i(2b−c))2+24c2(3a−12b−24c+243i(2b−c))
(-b/12 - c/24 + a/3 - i*sqrt(3)*(-c + 2*b)/24)*log(1 + (-576*b*(-b/12 - c/24 + a/3 - i*sqrt(3)*(-c + 2*b)/24)^2 - 64*b*a^2 - 8*a*c^2 + 16*c*b^2 + 24*c^2*(-b/12 - c/24 + a/3 - i*sqrt(3)*(-c + 2*b)/24) + 384*a*b*(-b/12 - c/24 + a/3 - i*sqrt(3)*(-c + 2*b)/24))/(-c^3 + 8*b^3)) + (-b/12 - c/24 + a/3 + i*sqrt(3)*(-c + 2*b)/24)*log(1 + (-576*b*(-b/12 - c/24 + a/3 + i*sqrt(3)*(-c + 2*b)/24)^2 - 64*b*a^2 - 8*a*c^2 + 16*c*b^2 + 24*c^2*(-b/12 - c/24 + a/3 + i*sqrt(3)*(-c + 2*b)/24) + 384*a*b*(-b/12 - c/24 + a/3 + i*sqrt(3)*(-c + 2*b)/24))/(-c^3 + 8*b^3)) - (-b/12 - c/24 + a/3 - i*sqrt(3)*(-c + 2*b)/24)*log((-576*b*(-b/12 - c/24 + a/3 - i*sqrt(3)*(-c + 2*b)/24)^2 - 64*b*a^2 - 8*a*c^2 + 16*c*b^2 + 24*c^2*(-b/12 - c/24 + a/3 - i*sqrt(3)*(-c + 2*b)/24) + 384*a*b*(-b/12 - c/24 + a/3 - i*sqrt(3)*(-c + 2*b)/24))/(-c^3 + 8*b^3)) - (-b/12 - c/24 + a/3 + i*sqrt(3)*(-c + 2*b)/24)*log((-576*b*(-b/12 - c/24 + a/3 + i*sqrt(3)*(-c + 2*b)/24)^2 - 64*b*a^2 - 8*a*c^2 + 16*c*b^2 + 24*c^2*(-b/12 - c/24 + a/3 + i*sqrt(3)*(-c + 2*b)/24) + 384*a*b*(-b/12 - c/24 + a/3 + i*sqrt(3)*(-c + 2*b)/24))/(-c^3 + 8*b^3)) - (c + 2*b + 4*a)*log((-64*b*a^2 - 8*a*c^2 - 4*b*(c + 2*b + 4*a)^2 + 2*c^2*(c + 2*b + 4*a) + 16*c*b^2 + 32*a*b*(c + 2*b + 4*a))/(-c^3 + 8*b^3))/12 + (c + 2*b + 4*a)*log(1 + (-64*b*a^2 - 8*a*c^2 - 4*b*(c + 2*b + 4*a)^2 + 2*c^2*(c + 2*b + 4*a) + 16*c*b^2 + 32*a*b*(c + 2*b + 4*a))/(-c^3 + 8*b^3))/12
Estos ejemplos se pueden aplicar para introducción de los límites de integración inferior y superior.