4.45 problem Problem 63

Internal problem ID [2200]

Book: Differential equations and linear algebra, Stephen W. Goode and Scott A Annin. Fourth edition, 2015
Section: Chapter 1, First-Order Differential Equations. Section 1.8, Change of Variables. page 79
Problem number: Problem 63.
ODE order: 1.
ODE degree: 1.

CAS Maple gives this as type [[_homogeneous, `class G`], _rational, _Riccati]

\[ \boxed {y^{\prime }+\frac {7 y}{x}-3 y^{2}-\frac {3}{x^{2}}=0} \]

Solution by Maple

Time used: 0.0 (sec). Leaf size: 26

dsolve(diff(y(x),x)+7/x*y(x)-3*y(x)^2=3/x^2,y(x), singsol=all)
 

\[ y \left (x \right ) = \frac {3 \ln \left (x \right )-3 c_{1} -1}{3 x \left (\ln \left (x \right )-c_{1} \right )} \]

Solution by Mathematica

Time used: 0.146 (sec). Leaf size: 15

DSolve[y'[x]+7/x*y[x]-3*y[x]^2==3/x^2,y[x],x,IncludeSingularSolutions -> True]
 

\begin{align*} y(x)\to \frac {1}{x} \\ y(x)\to \frac {1}{x} \\ \end{align*}