74.9.21 problem 32

Internal problem ID [16197]
Book : INTRODUCTORY DIFFERENTIAL EQUATIONS. Martha L. Abell, James P. Braselton. Fourth edition 2014. ElScAe. 2014
Section : Chapter 4. Higher Order Equations. Exercises 4.1, page 141
Problem number : 32
Date solved : Tuesday, January 28, 2025 at 08:56:58 AM
CAS classification : [[_Emden, _Fowler]]

\begin{align*} t^{2} y^{\prime \prime }+6 y^{\prime } t +6 y&=0 \end{align*}

Using reduction of order method given that one solution is

\begin{align*} y&=\frac {1}{t^{2}} \end{align*}

✓ Solution by Maple

Time used: 0.004 (sec). Leaf size: 13

dsolve([t^2*diff(y(t),t$2)+6*t*diff(y(t),t)+6*y(t)=0,1/t^2],singsol=all)
 

\[ y = \frac {c_{2} t +c_{1}}{t^{3}} \]

✓ Solution by Mathematica

Time used: 0.011 (sec). Leaf size: 16

DSolve[t^2*D[y[t],{t,2}]+6*t*D[y[t],t]+6*y[t]==0,y[t],t,IncludeSingularSolutions -> True]
 

\[ y(t)\to \frac {c_2 t+c_1}{t^3} \]