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y=2*t*sin(t)-(t^2-2)*cos(t) la ecuación

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Solución numérica:

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Solución

Ha introducido [src]
                 / 2    \       
y = 2*t*sin(t) - \t  - 2/*cos(t)
$$y = 2 t \sin{\left(t \right)} - \left(t^{2} - 2\right) \cos{\left(t \right)}$$
Gráfica
Respuesta rápida [src]
         / 2       \                      /    / 2       \                                            \                           
y1 = - re\t *cos(t)/ + 2*re(t*sin(t)) + I*\- im\t *cos(t)/ + 2*im(t*sin(t)) - 2*sin(re(t))*sinh(im(t))/ + 2*cos(re(t))*cosh(im(t))
$$y_{1} = i \left(- 2 \sin{\left(\operatorname{re}{\left(t\right)} \right)} \sinh{\left(\operatorname{im}{\left(t\right)} \right)} + 2 \operatorname{im}{\left(t \sin{\left(t \right)}\right)} - \operatorname{im}{\left(t^{2} \cos{\left(t \right)}\right)}\right) + 2 \cos{\left(\operatorname{re}{\left(t\right)} \right)} \cosh{\left(\operatorname{im}{\left(t\right)} \right)} + 2 \operatorname{re}{\left(t \sin{\left(t \right)}\right)} - \operatorname{re}{\left(t^{2} \cos{\left(t \right)}\right)}$$
y1 = i*(-2*sin(re(t))*sinh(im(t)) + 2*im(t*sin(t)) - im(t^2*cos(t))) + 2*cos(re(t))*cosh(im(t)) + 2*re(t*sin(t)) - re(t^2*cos(t))
Suma y producto de raíces [src]
suma
    / 2       \                      /    / 2       \                                            \                           
- re\t *cos(t)/ + 2*re(t*sin(t)) + I*\- im\t *cos(t)/ + 2*im(t*sin(t)) - 2*sin(re(t))*sinh(im(t))/ + 2*cos(re(t))*cosh(im(t))
$$i \left(- 2 \sin{\left(\operatorname{re}{\left(t\right)} \right)} \sinh{\left(\operatorname{im}{\left(t\right)} \right)} + 2 \operatorname{im}{\left(t \sin{\left(t \right)}\right)} - \operatorname{im}{\left(t^{2} \cos{\left(t \right)}\right)}\right) + 2 \cos{\left(\operatorname{re}{\left(t\right)} \right)} \cosh{\left(\operatorname{im}{\left(t\right)} \right)} + 2 \operatorname{re}{\left(t \sin{\left(t \right)}\right)} - \operatorname{re}{\left(t^{2} \cos{\left(t \right)}\right)}$$
=
    / 2       \                      /    / 2       \                                            \                           
- re\t *cos(t)/ + 2*re(t*sin(t)) + I*\- im\t *cos(t)/ + 2*im(t*sin(t)) - 2*sin(re(t))*sinh(im(t))/ + 2*cos(re(t))*cosh(im(t))
$$i \left(- 2 \sin{\left(\operatorname{re}{\left(t\right)} \right)} \sinh{\left(\operatorname{im}{\left(t\right)} \right)} + 2 \operatorname{im}{\left(t \sin{\left(t \right)}\right)} - \operatorname{im}{\left(t^{2} \cos{\left(t \right)}\right)}\right) + 2 \cos{\left(\operatorname{re}{\left(t\right)} \right)} \cosh{\left(\operatorname{im}{\left(t\right)} \right)} + 2 \operatorname{re}{\left(t \sin{\left(t \right)}\right)} - \operatorname{re}{\left(t^{2} \cos{\left(t \right)}\right)}$$
producto
    / 2       \                      /    / 2       \                                            \                           
- re\t *cos(t)/ + 2*re(t*sin(t)) + I*\- im\t *cos(t)/ + 2*im(t*sin(t)) - 2*sin(re(t))*sinh(im(t))/ + 2*cos(re(t))*cosh(im(t))
$$i \left(- 2 \sin{\left(\operatorname{re}{\left(t\right)} \right)} \sinh{\left(\operatorname{im}{\left(t\right)} \right)} + 2 \operatorname{im}{\left(t \sin{\left(t \right)}\right)} - \operatorname{im}{\left(t^{2} \cos{\left(t \right)}\right)}\right) + 2 \cos{\left(\operatorname{re}{\left(t\right)} \right)} \cosh{\left(\operatorname{im}{\left(t\right)} \right)} + 2 \operatorname{re}{\left(t \sin{\left(t \right)}\right)} - \operatorname{re}{\left(t^{2} \cos{\left(t \right)}\right)}$$
=
    / 2       \                      /    / 2       \                                            \                           
- re\t *cos(t)/ + 2*re(t*sin(t)) + I*\- im\t *cos(t)/ + 2*im(t*sin(t)) - 2*sin(re(t))*sinh(im(t))/ + 2*cos(re(t))*cosh(im(t))
$$i \left(- 2 \sin{\left(\operatorname{re}{\left(t\right)} \right)} \sinh{\left(\operatorname{im}{\left(t\right)} \right)} + 2 \operatorname{im}{\left(t \sin{\left(t \right)}\right)} - \operatorname{im}{\left(t^{2} \cos{\left(t \right)}\right)}\right) + 2 \cos{\left(\operatorname{re}{\left(t\right)} \right)} \cosh{\left(\operatorname{im}{\left(t\right)} \right)} + 2 \operatorname{re}{\left(t \sin{\left(t \right)}\right)} - \operatorname{re}{\left(t^{2} \cos{\left(t \right)}\right)}$$
-re(t^2*cos(t)) + 2*re(t*sin(t)) + i*(-im(t^2*cos(t)) + 2*im(t*sin(t)) - 2*sin(re(t))*sinh(im(t))) + 2*cos(re(t))*cosh(im(t))