Integral de (2x-3)/(x^2+2x-7) dx
Solución
Respuesta (Indefinida)
[src]
// / ___ \ \
|| ___ |\/ 2 *(1 + x)| |
||-\/ 2 *acoth|-------------| |
/ || \ 4 / 2 |
| ||---------------------------- for (1 + x) > 8|
| 2*x - 3 || 4 | / 2 \
| ------------ dx = C - 5*|< | + log\-7 + x + 2*x/
| 2 || / ___ \ |
| x + 2*x - 7 || ___ |\/ 2 *(1 + x)| |
| ||-\/ 2 *atanh|-------------| |
/ || \ 4 / 2 |
||---------------------------- for (1 + x) < 8|
\\ 4 /
∫(x2+2x)−72x−3dx=C−5⎩⎨⎧−42acoth(42(x+1))−42atanh(42(x+1))for(x+1)2>8for(x+1)2<8+log(x2+2x−7)
Gráfica
/ ___\ / ___\ / ___\ / ___\
| 5*\/ 2 | / / ___\\ | 5*\/ 2 | / ___\ | 5*\/ 2 | / / ___\\ | 5*\/ 2 | / ___\
|1 - -------|*\pi*I + log\-2 + 2*\/ 2 // + |1 + -------|*log\2 + 2*\/ 2 / - |1 - -------|*\pi*I + log\-1 + 2*\/ 2 // - |1 + -------|*log\1 + 2*\/ 2 /
\ 8 / \ 8 / \ 8 / \ 8 /
−(852+1)log(1+22)+(852+1)log(2+22)−(1−852)(log(−1+22)+iπ)+(1−852)(log(−2+22)+iπ)
=
/ ___\ / ___\ / ___\ / ___\
| 5*\/ 2 | / / ___\\ | 5*\/ 2 | / ___\ | 5*\/ 2 | / / ___\\ | 5*\/ 2 | / ___\
|1 - -------|*\pi*I + log\-2 + 2*\/ 2 // + |1 + -------|*log\2 + 2*\/ 2 / - |1 - -------|*\pi*I + log\-1 + 2*\/ 2 // - |1 + -------|*log\1 + 2*\/ 2 /
\ 8 / \ 8 / \ 8 / \ 8 /
−(852+1)log(1+22)+(852+1)log(2+22)−(1−852)(log(−1+22)+iπ)+(1−852)(log(−2+22)+iπ)
(1 - 5*sqrt(2)/8)*(pi*i + log(-2 + 2*sqrt(2))) + (1 + 5*sqrt(2)/8)*log(2 + 2*sqrt(2)) - (1 - 5*sqrt(2)/8)*(pi*i + log(-1 + 2*sqrt(2))) - (1 + 5*sqrt(2)/8)*log(1 + 2*sqrt(2))
Estos ejemplos se pueden aplicar para introducción de los límites de integración inferior y superior.