17.49 problem 49

Internal problem ID [13847]

Book: Ordinary Differential Equations. An introduction to the fundamentals. Kenneth B. Howell. second edition. CRC Press. FL, USA. 2020
Section: Chapter 25. Review exercises for part III. page 447
Problem number: 49.
ODE order: 2.
ODE degree: 1.

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

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

Solution by Maple

Time used: 0.0 (sec). Leaf size: 20

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

\[ y \left (x \right ) = \frac {c_{2} +\ln \left (1+x \right )+\left (c_{1} -1\right ) \ln \left (x \right )}{x} \]

Solution by Mathematica

Time used: 0.035 (sec). Leaf size: 23

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

\[ y(x)\to \frac {\log (x+1)+(-1+c_2) \log (x)+c_1}{x} \]