Integral de x2^(-x) dx
Solución
Respuesta (Indefinida)
[src]
/ // -x \
| || x2 |
| -x ||------- for log(x2) != 0|
| x2 dx = C - |
$$\int x_{2}^{- x}\, dx = C - \begin{cases} \frac{x_{2}^{- x}}{\log{\left(x_{2} \right)}} & \text{for}\: \log{\left(x_{2} \right)} \neq 0 \\- x & \text{otherwise} \end{cases}$$
/ 1 1
|------- - ---------- for Or(And(x2 >= 0, x2 < 1), x2 > 1)
$$\begin{cases} \frac{1}{\log{\left(x_{2} \right)}} - \frac{1}{x_{2} \log{\left(x_{2} \right)}} & \text{for}\: \left(x_{2} \geq 0 \wedge x_{2} < 1\right) \vee x_{2} > 1 \\1 & \text{otherwise} \end{cases}$$
=
/ 1 1
|------- - ---------- for Or(And(x2 >= 0, x2 < 1), x2 > 1)
$$\begin{cases} \frac{1}{\log{\left(x_{2} \right)}} - \frac{1}{x_{2} \log{\left(x_{2} \right)}} & \text{for}\: \left(x_{2} \geq 0 \wedge x_{2} < 1\right) \vee x_{2} > 1 \\1 & \text{otherwise} \end{cases}$$
Piecewise((1/log(x2) - 1/(x2*log(x2)), (x2 > 1)∨((x2 >= 0)∧(x2 < 1))), (1, True))
Estos ejemplos se pueden aplicar para introducción de los límites de integración inferior y superior.