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Ecuación diferencial dy/dx=((ln(x))/(xy+xy^3))

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Para el problema de Cauchy:

y() =
y'() =
y''() =
y'''() =
y''''() =

Gráfico:

interior superior

Solución

Ha introducido [src]
d               log(x)     
--(y(x)) = ----------------
dx            3            
           x*y (x) + x*y(x)
$$\frac{d}{d x} y{\left(x \right)} = \frac{\log{\left(x \right)}}{x y^{3}{\left(x \right)} + x y{\left(x \right)}}$$
y' = log(x)/(x*y^3 + x*y)
Respuesta [src]
            __________________________
           /         ________________ 
          /         /           2     
y(x) = -\/   -1 - \/  C1 + 2*log (x)  
$$y{\left(x \right)} = - \sqrt{- \sqrt{C_{1} + 2 \log{\left(x \right)}^{2}} - 1}$$
           __________________________
          /         ________________ 
         /         /           2     
y(x) = \/   -1 - \/  C1 + 2*log (x)  
$$y{\left(x \right)} = \sqrt{- \sqrt{C_{1} + 2 \log{\left(x \right)}^{2}} - 1}$$
            __________________________
           /         ________________ 
          /         /           2     
y(x) = -\/   -1 + \/  C1 + 2*log (x)  
$$y{\left(x \right)} = - \sqrt{\sqrt{C_{1} + 2 \log{\left(x \right)}^{2}} - 1}$$
           __________________________
          /         ________________ 
         /         /           2     
y(x) = \/   -1 + \/  C1 + 2*log (x)  
$$y{\left(x \right)} = \sqrt{\sqrt{C_{1} + 2 \log{\left(x \right)}^{2}} - 1}$$
Gráfico para el problema de Cauchy
Clasificación
separable
1st exact
lie group
separable Integral
1st exact Integral
Respuesta numérica [src]
(x, y):
(-10.0, 0.75)
(-7.777777777777778, nan)
(-5.555555555555555, nan)
(-3.333333333333333, nan)
(-1.1111111111111107, nan)
(1.1111111111111107, nan)
(3.333333333333334, nan)
(5.555555555555557, nan)
(7.777777777777779, nan)
(10.0, nan)
(10.0, nan)