1.764 problem 781

Internal problem ID [7498]

Book: Collection of Kovacic problems
Section: section 1
Problem number: 781.
ODE order: 2.
ODE degree: 1.

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

Solve \begin {gather*} \boxed {x^{2} y^{\prime \prime }+4 x y^{\prime }+\left (x^{2}+2\right ) y=0} \end {gather*}

Solution by Maple

Time used: 0.016 (sec). Leaf size: 19

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

\[ y \relax (x ) = \frac {c_{1} \sin \relax (x )}{x^{2}}+\frac {c_{2} \cos \relax (x )}{x^{2}} \]

Solution by Mathematica

Time used: 0.018 (sec). Leaf size: 37

DSolve[x^2*y''[x]+4*x*y'[x]+(x^2+2)*y[x]==0,y[x],x,IncludeSingularSolutions -> True]
 

\begin{align*} y(x)\to \frac {2 c_1 e^{-i x}-i c_2 e^{i x}}{2 x^2} \\ \end{align*}