Sr Examen

Ecuación diferencial dy/dx=(-2x+y^2)-7

El profesor se sorprenderá mucho al ver tu solución correcta😉

v

Para el problema de Cauchy:

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

Gráfico:

interior superior

Solución

Ha introducido [src]
d                2         
--(y(x)) = -7 + y (x) - 2*x
dx                         
$$\frac{d}{d x} y{\left(x \right)} = - 2 x + y^{2}{\left(x \right)} - 7$$
y' = -2*x + y^2 - 7
Respuesta [src]
                                                      3 /        /       2\ /         2\\    4 /         2   /       2\ /        /         2\        /       2\\\    5 /    /       2\ /           /        /         2\        /       2\\   /          2\ /       2\\      /         2\        /       2\\        
              /       2\    2 /        /       2\\   x *\-2*C1 + \-7 + C1 /*\-7 + 3*C1 //   x *\14 - 4*C1  + \-7 + C1 /*\-1 + C1*\-7 + 3*C1 / + 3*C1*\-7 + C1 ///   x *\3 + \-7 + C1 /*\-4*C1 + C1*\-1 + C1*\-7 + 3*C1 / + 3*C1*\-7 + C1 // + \-14 + 9*C1 /*\-7 + C1 // - C1*\-7 + 3*C1 / - 7*C1*\-7 + C1 //    / 6\
y(x) = C1 + x*\-7 + C1 / + x *\-1 + C1*\-7 + C1 // + ------------------------------------ + --------------------------------------------------------------------- + ---------------------------------------------------------------------------------------------------------------------------------------- + O\x /
                                                                      3                                                       6                                                                                                        15                                                                           
$$y{\left(x \right)} = x \left(C_{1}^{2} - 7\right) + x^{2} \left(C_{1} \left(C_{1}^{2} - 7\right) - 1\right) + \frac{x^{3} \left(- 2 C_{1} + \left(C_{1}^{2} - 7\right) \left(3 C_{1}^{2} - 7\right)\right)}{3} + \frac{x^{4} \left(- 4 C_{1}^{2} + \left(C_{1}^{2} - 7\right) \left(3 C_{1} \left(C_{1}^{2} - 7\right) + C_{1} \left(3 C_{1}^{2} - 7\right) - 1\right) + 14\right)}{6} + \frac{x^{5} \left(- 7 C_{1} \left(C_{1}^{2} - 7\right) - C_{1} \left(3 C_{1}^{2} - 7\right) + \left(C_{1}^{2} - 7\right) \left(C_{1} \left(3 C_{1} \left(C_{1}^{2} - 7\right) + C_{1} \left(3 C_{1}^{2} - 7\right) - 1\right) - 4 C_{1} + \left(C_{1}^{2} - 7\right) \left(9 C_{1}^{2} - 14\right)\right) + 3\right)}{15} + C_{1} + O\left(x^{6}\right)$$
Gráfico para el problema de Cauchy
Clasificación
1st power series
lie group
Respuesta numérica [src]
(x, y):
(-10.0, 0.75)
(-7.777777777777778, 1954079520.4611142)
(-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, 3.1237768967464496e-33)
(7.777777777777779, 8.388243567719912e+296)
(10.0, 1.0759798446059127e-282)
(10.0, 1.0759798446059127e-282)