9.8 problem 11

Internal problem ID [1746]

Book: Differential equations and their applications, 3rd ed., M. Braun
Section: Section 2.2.2, Equal roots, reduction of order. Page 147
Problem number: 11.
ODE order: 2.
ODE degree: 1.

CAS Maple gives this as type [[_2nd_order, _with_linear_symmetries]]

\[ \boxed {y^{\prime \prime }-4 t y^{\prime }+\left (4 t^{2}-2\right ) y=0} \]

Solution by Maple

Time used: 0.0 (sec). Leaf size: 14

dsolve(diff(y(t),t$2)-4*t*diff(y(t),t)+(4*t^2-2)*y(t)=0,y(t), singsol=all)
 

\[ y \left (t \right ) = {\mathrm e}^{t^{2}} \left (c_{2} t +c_{1} \right ) \]

Solution by Mathematica

Time used: 0.022 (sec). Leaf size: 18

DSolve[y''[t]-4*t*y'[t]+(4*t^2-2)*y[t]==0,y[t],t,IncludeSingularSolutions -> True]
                                                                                    
                                                                                    
 

\[ y(t)\to e^{t^2} (c_2 t+c_1) \]