Resolución de la ecuación paramétrica
Se da la ecuación con parámetro:
$$x e^{x} + y \left(x + 1\right) e^{x} = 1$$
Коэффициент при y равен
$$\left(x + 1\right) e^{x}$$
entonces son posibles los casos para x :
$$x < -1$$
$$x = -1$$
Consideremos todos los casos con detalles:
Con
$$x < -1$$
la ecuación será
$$- \frac{y}{e^{2}} - 1 - \frac{2}{e^{2}} = 0$$
su solución
$$y = - e^{2} - 2$$
Con
$$x = -1$$
la ecuación será
$$-1 - e^{-1} = 0$$
su solución
no hay soluciones
Suma y producto de raíces
[src]
/ / -x \ / -x \\ / -x \ / -x \
|/ / x\\ | e | / x\ | e || / / x\\ | e | / x\ | e |
I*|\1 - re\x*e //*im|-----| - im\x*e /*re|-----|| + \1 - re\x*e //*re|-----| + im\x*e /*im|-----|
\ \1 + x/ \1 + x// \1 + x/ \1 + x/
$$\left(1 - \operatorname{re}{\left(x e^{x}\right)}\right) \operatorname{re}{\left(\frac{e^{- x}}{x + 1}\right)} + i \left(\left(1 - \operatorname{re}{\left(x e^{x}\right)}\right) \operatorname{im}{\left(\frac{e^{- x}}{x + 1}\right)} - \operatorname{re}{\left(\frac{e^{- x}}{x + 1}\right)} \operatorname{im}{\left(x e^{x}\right)}\right) + \operatorname{im}{\left(x e^{x}\right)} \operatorname{im}{\left(\frac{e^{- x}}{x + 1}\right)}$$
/ / -x \ / -x \\ / -x \ / -x \
|/ / x\\ | e | / x\ | e || / / x\\ | e | / x\ | e |
I*|\1 - re\x*e //*im|-----| - im\x*e /*re|-----|| + \1 - re\x*e //*re|-----| + im\x*e /*im|-----|
\ \1 + x/ \1 + x// \1 + x/ \1 + x/
$$\left(1 - \operatorname{re}{\left(x e^{x}\right)}\right) \operatorname{re}{\left(\frac{e^{- x}}{x + 1}\right)} + i \left(\left(1 - \operatorname{re}{\left(x e^{x}\right)}\right) \operatorname{im}{\left(\frac{e^{- x}}{x + 1}\right)} - \operatorname{re}{\left(\frac{e^{- x}}{x + 1}\right)} \operatorname{im}{\left(x e^{x}\right)}\right) + \operatorname{im}{\left(x e^{x}\right)} \operatorname{im}{\left(\frac{e^{- x}}{x + 1}\right)}$$
/ / -x \ / -x \\ / -x \ / -x \
|/ / x\\ | e | / x\ | e || / / x\\ | e | / x\ | e |
I*|\1 - re\x*e //*im|-----| - im\x*e /*re|-----|| + \1 - re\x*e //*re|-----| + im\x*e /*im|-----|
\ \1 + x/ \1 + x// \1 + x/ \1 + x/
$$\left(1 - \operatorname{re}{\left(x e^{x}\right)}\right) \operatorname{re}{\left(\frac{e^{- x}}{x + 1}\right)} + i \left(\left(1 - \operatorname{re}{\left(x e^{x}\right)}\right) \operatorname{im}{\left(\frac{e^{- x}}{x + 1}\right)} - \operatorname{re}{\left(\frac{e^{- x}}{x + 1}\right)} \operatorname{im}{\left(x e^{x}\right)}\right) + \operatorname{im}{\left(x e^{x}\right)} \operatorname{im}{\left(\frac{e^{- x}}{x + 1}\right)}$$
/ -x \ / / -x \ / -x \\ / -x \
/ x\ | e | |/ / x\\ | e | / x\ | e || / / x\\ | e |
im\x*e /*im|-----| - I*|\-1 + re\x*e //*im|-----| + im\x*e /*re|-----|| - \-1 + re\x*e //*re|-----|
\1 + x/ \ \1 + x/ \1 + x// \1 + x/
$$- i \left(\left(\operatorname{re}{\left(x e^{x}\right)} - 1\right) \operatorname{im}{\left(\frac{e^{- x}}{x + 1}\right)} + \operatorname{re}{\left(\frac{e^{- x}}{x + 1}\right)} \operatorname{im}{\left(x e^{x}\right)}\right) - \left(\operatorname{re}{\left(x e^{x}\right)} - 1\right) \operatorname{re}{\left(\frac{e^{- x}}{x + 1}\right)} + \operatorname{im}{\left(x e^{x}\right)} \operatorname{im}{\left(\frac{e^{- x}}{x + 1}\right)}$$
im(x*exp(x))*im(exp(-x)/(1 + x)) - i*((-1 + re(x*exp(x)))*im(exp(-x)/(1 + x)) + im(x*exp(x))*re(exp(-x)/(1 + x))) - (-1 + re(x*exp(x)))*re(exp(-x)/(1 + x))
/ / -x \ / -x \\ / -x \ / -x \
|/ / x\\ | e | / x\ | e || / / x\\ | e | / x\ | e |
y1 = I*|\1 - re\x*e //*im|-----| - im\x*e /*re|-----|| + \1 - re\x*e //*re|-----| + im\x*e /*im|-----|
\ \1 + x/ \1 + x// \1 + x/ \1 + x/
$$y_{1} = \left(1 - \operatorname{re}{\left(x e^{x}\right)}\right) \operatorname{re}{\left(\frac{e^{- x}}{x + 1}\right)} + i \left(\left(1 - \operatorname{re}{\left(x e^{x}\right)}\right) \operatorname{im}{\left(\frac{e^{- x}}{x + 1}\right)} - \operatorname{re}{\left(\frac{e^{- x}}{x + 1}\right)} \operatorname{im}{\left(x e^{x}\right)}\right) + \operatorname{im}{\left(x e^{x}\right)} \operatorname{im}{\left(\frac{e^{- x}}{x + 1}\right)}$$
y1 = (1 - re(x*exp(x)))*re(exp(-x)/(x + 1)) + i*((1 - re(x*exp(x)))*im(exp(-x)/(x + 1)) - re(exp(-x)/(x + 1))*im(x*exp(x))) + im(x*exp(x))*im(exp(-x)/(x + 1))