1.350 problem 355

Internal problem ID [7840]

Book: Collection of Kovacic problems
Section: section 1
Problem number: 355.
ODE order: 2.
ODE degree: 1.

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

\[ \boxed {3 t \left (t +1\right ) y^{\prime \prime }+t y^{\prime }-y=0} \]

Solution by Maple

Time used: 0.0 (sec). Leaf size: 22

dsolve(3*t*(1+t)*diff(y(t),t$2)+t*diff(y(t),t)-y(t)=0,y(t), singsol=all)
 

\[ y \left (t \right ) = c_{1} t +c_{2} t \left (\int \frac {1}{\left (t +1\right )^{\frac {1}{3}} t^{2}}d t \right ) \]

Solution by Mathematica

Time used: 0.23 (sec). Leaf size: 93

DSolve[3*t*(1+t)*y''[t]+t*y'[t]-y[t]==0,y[t],t,IncludeSingularSolutions -> True]
                                                                                    
                                                                                    
 

\[ y(t)\to \frac {6 c_1 t-c_2 \left (2 \sqrt {3} t \arctan \left (\frac {2 \sqrt [3]{t+1}+1}{\sqrt {3}}\right )+6 (t+1)^{2/3}+2 t \log \left (\sqrt [3]{t+1}-1\right )-t \log \left ((t+1)^{2/3}+\sqrt [3]{t+1}+1\right )\right )}{6 \sqrt [6]{3}} \]