Internal problem ID [14755]
Book: INTRODUCTORY DIFFERENTIAL EQUATIONS. Martha L. Abell, James P. Braselton.
Fourth edition 2014. ElScAe. 2014
Section: Chapter 4. Higher Order Equations. Exercises 4.7, page 195
Problem number: 49.
ODE order: 3.
ODE degree: 1.
CAS Maple gives this as type [[_3rd_order, _missing_y]]
\[ \boxed {x^{3} y^{\prime \prime \prime }+3 x^{2} y^{\prime \prime }+37 y^{\prime } x=0} \]
✓ Solution by Maple
Time used: 0.0 (sec). Leaf size: 20
dsolve(x^3*diff(y(x),x$3)+3*x^2*diff(y(x),x$2)+37*x*diff(y(x),x)=0,y(x), singsol=all)
\[ y \left (x \right ) = c_{1} +\sin \left (6 \ln \left (x \right )\right ) c_{2} +c_{3} \cos \left (6 \ln \left (x \right )\right ) \]
✓ Solution by Mathematica
Time used: 0.164 (sec). Leaf size: 30
DSolve[x^3*y'''[x]+3*x^2*y''[x]+37*x*y'[x]==0,y[x],x,IncludeSingularSolutions -> True]
\[ y(x)\to -\frac {1}{6} c_1 \cos (6 \log (x))+\frac {1}{6} c_2 \sin (6 \log (x))+c_3 \]