3.267 problem 1267

Internal problem ID [9602]

Book: Differential Gleichungen, E. Kamke, 3rd ed. Chelsea Pub. NY, 1948
Section: Chapter 2, linear second order
Problem number: 1267.
ODE order: 2.
ODE degree: 1.

CAS Maple gives this as type [[_2nd_order, _exact, _linear, _homogeneous]]

\[ \boxed {2 x^{2} y^{\prime \prime }-\left (2 x^{2}+l -5 x \right ) y^{\prime }-\left (4 x -1\right ) y=0} \]

Solution by Maple

Time used: 0.156 (sec). Leaf size: 41

dsolve(2*x^2*diff(diff(y(x),x),x)-(2*x^2+l-5*x)*diff(y(x),x)-(4*x-1)*y(x)=0,y(x), singsol=all)
 

\[ y \left (x \right ) = \frac {\left (c_{1} \left (\int \frac {{\mathrm e}^{-x} {\mathrm e}^{\frac {l}{2 x}}}{2 x^{\frac {3}{2}}}d x \right )+c_{2} \right ) {\mathrm e}^{x} {\mathrm e}^{-\frac {l}{2 x}}}{\sqrt {x}} \]

Solution by Mathematica

Time used: 0.552 (sec). Leaf size: 59

DSolve[(1 - 4*x)*y[x] - (l - 5*x + 2*x^2)*y'[x] + 2*x^2*y''[x] == 0,y[x],x,IncludeSingularSolutions -> True]
 

\[ y(x)\to \frac {e^{x-\frac {l}{2 x}} \left (c_2 \int _1^x\frac {e^{\frac {l}{2 K[1]}-K[1]}}{K[1]^{3/2}}dK[1]+c_1\right )}{\sqrt {x}} \]