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Ecuación diferencial cos(x)/y^2+2*sin(x)*y'/y^3=2*sin(x)

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Para el problema de Cauchy:

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

Gráfico:

interior superior

Solución

Ha introducido [src]
           d                         
         2*--(y(x))*sin(x)           
cos(x)     dx                        
------ + ----------------- = 2*sin(x)
 2              3                    
y (x)          y (x)                 
$$\frac{\cos{\left(x \right)}}{y^{2}{\left(x \right)}} + \frac{2 \sin{\left(x \right)} \frac{d}{d x} y{\left(x \right)}}{y^{3}{\left(x \right)}} = 2 \sin{\left(x \right)}$$
cos(x)/y^2 + 2*sin(x)*y'/y^3 = 2*sin(x)
Respuesta [src]
            __________________________________________________
           /                        1                         
y(x) = -  /  ------------------------------------------------ 
        \/   (C1 - log(-1 + cos(x)) + log(1 + cos(x)))*sin(x) 
$$y{\left(x \right)} = - \sqrt{\frac{1}{\left(C_{1} - \log{\left(\cos{\left(x \right)} - 1 \right)} + \log{\left(\cos{\left(x \right)} + 1 \right)}\right) \sin{\left(x \right)}}}$$
           __________________________________________________
          /                        1                         
y(x) =   /  ------------------------------------------------ 
       \/   (C1 - log(-1 + cos(x)) + log(1 + cos(x)))*sin(x) 
$$y{\left(x \right)} = \sqrt{\frac{1}{\left(C_{1} - \log{\left(\cos{\left(x \right)} - 1 \right)} + \log{\left(\cos{\left(x \right)} + 1 \right)}\right) \sin{\left(x \right)}}}$$
Gráfico para el problema de Cauchy
Clasificación
factorable
1st exact
Bernoulli
almost linear
lie group
1st exact Integral
Bernoulli Integral
almost linear Integral
Respuesta numérica [src]
(x, y):
(-10.0, 0.75)
(-7.777777777777778, 23526.41040505238)
(-5.555555555555555, 2.17e-322)
(-3.333333333333333, nan)
(-1.1111111111111107, 2.78363573e-315)
(1.1111111111111107, 8.427456047434801e+197)
(3.333333333333334, 3.1933833808213433e-248)
(5.555555555555557, 8.973398002470273e-67)
(7.777777777777779, 8.388243566958932e+296)
(10.0, 3.861029683e-315)
(10.0, 3.861029683e-315)