Integral de (1-x)*exp(-a*x) dx
Solución
Respuesta (Indefinida)
[src]
// 2 \
|| x |
|| -- for a = 0|
|| 2 |
/ // x for a = 0\ || |
| || | ||/ -a*x |
| -a*x || -a*x | |||e 2 |
| (1 - x)*e dx = C - (-1 + x)*|<-e | + |<|----- for a != 0 |
| ||------- otherwise| ||| 2 |
/ || a | ||< a otherwise|
\\ / ||| |
||| -x |
||| --- otherwise |
||\ a |
\\ /
∫(1−x)e−axdx=C−(x−1)({x−ae−axfora=0otherwise)+⎩⎨⎧2x2{a2e−ax−axfora2=0otherwisefora=0otherwise
/ -a
|e 1 - a
|--- - ----- for And(a > -oo, a < oo, a != 0)
< 2 2
| a a
|
\ 1/2 otherwise
{−a21−a+a2e−a21fora>−∞∧a<∞∧a=0otherwise
=
/ -a
|e 1 - a
|--- - ----- for And(a > -oo, a < oo, a != 0)
< 2 2
| a a
|
\ 1/2 otherwise
{−a21−a+a2e−a21fora>−∞∧a<∞∧a=0otherwise
Piecewise((exp(-a)/a^2 - (1 - a)/a^2, (a > -oo)∧(a < oo)∧(Ne(a, 0))), (1/2, True))
Estos ejemplos se pueden aplicar para introducción de los límites de integración inferior y superior.