13.11 problem 20.1 (k)

Internal problem ID [13653]

Book: Ordinary Differential Equations. An introduction to the fundamentals. Kenneth B. Howell. second edition. CRC Press. FL, USA. 2020
Section: Chapter 20. Euler equations. Additional exercises page 382
Problem number: 20.1 (k).
ODE order: 2.
ODE degree: 1.

CAS Maple gives this as type [[_Emden, _Fowler]]

\[ \boxed {x^{2} y^{\prime \prime }+5 y^{\prime } x +29 y=0} \]

Solution by Maple

Time used: 0.0 (sec). Leaf size: 23

dsolve(x^2*diff(y(x),x$2)+5*x*diff(y(x),x)+29*y(x)=0,y(x), singsol=all)
 

\[ y \left (x \right ) = \frac {c_{1} \sin \left (5 \ln \left (x \right )\right )+c_{2} \cos \left (5 \ln \left (x \right )\right )}{x^{2}} \]

Solution by Mathematica

Time used: 0.024 (sec). Leaf size: 26

DSolve[x^2*y''[x]+5*x*y'[x]+29*y[x]==0,y[x],x,IncludeSingularSolutions -> True]
 

\[ y(x)\to \frac {c_2 \cos (5 \log (x))+c_1 \sin (5 \log (x))}{x^2} \]