1.18 problem 18

Internal problem ID [6751]

Book: Collection of Kovacic problems
Section: section 1
Problem number: 18.
ODE order: 2.
ODE degree: 1.

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

\[ \boxed {\left (-t +1\right ) y^{\prime \prime }+t y^{\prime }-y=0} \]

Solution by Maple

Time used: 0.015 (sec). Leaf size: 12

dsolve((1-t)*diff(y(t),t$2)+t*diff(y(t),t)-y(t) = 0,y(t), singsol=all)
 

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

Solution by Mathematica

Time used: 0.008 (sec). Leaf size: 17

DSolve[(1-t)*y''[t]+t*y'[t]-y[t] ==0,y[t],t,IncludeSingularSolutions -> True]
 

\begin{align*} y(t)\to c_1 e^t-c_2 t \\ \end{align*}