2.26 problem 26

Internal problem ID [7467]

Book: Second order enumerated odes
Section: section 2
Problem number: 26.
ODE order: 2.
ODE degree: 1.

CAS Maple gives this as type [[_2nd_order, _linear, _nonhomogeneous]]

\[ \boxed {y^{\prime \prime }+\left (1-\frac {1}{x}\right ) y^{\prime }+4 x^{2} y \,{\mathrm e}^{-2 x}=4 \left (x^{3}+x^{2}\right ) {\mathrm e}^{-3 x}} \]

Solution by Maple

Time used: 0.016 (sec). Leaf size: 37

dsolve(diff(y(x),x$2)+(1-1/x)*diff(y(x),x)+4*x^2*y(x)*exp(-2*x)=4*(x^2+x^3)*exp(-3*x),y(x), singsol=all)
 

\[ y \left (x \right ) = \sin \left (2 \left (x +1\right ) {\mathrm e}^{-x}\right ) c_{2} +\cos \left (2 \left (x +1\right ) {\mathrm e}^{-x}\right ) c_{1} +\left (x +1\right ) {\mathrm e}^{-x} \]

Solution by Mathematica

Time used: 0.604 (sec). Leaf size: 47

DSolve[y''[x]+(1-1/x)*y'[x]+4*x^2*y[x]*Exp[-2*x]==4*(x^2+x^3)*Exp[-3*x],y[x],x,IncludeSingularSolutions -> True]
 

\[ y(x)\to c_1 \cos \left (2 e^{-x} (x+1)\right )+e^{-x} \left (x-c_2 e^x \sin \left (2 e^{-x} (x+1)\right )+1\right ) \]