3.2 problem 10

Internal problem ID [2065]

Book: Differential equations and linear algebra, Stephen W. Goode, second edition, 2000
Section: 1.8, page 68
Problem number: 10.
ODE order: 1.
ODE degree: 1.

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

\[ \boxed {y^{\prime }-\frac {\left (x +y\right )^{2}}{2 x^{2}}=0} \]

Solution by Maple

Time used: 0.015 (sec). Leaf size: 15

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

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

Solution by Mathematica

Time used: 0.203 (sec). Leaf size: 17

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

\begin{align*} y(x)\to x \tan \left (\frac {\log (x)}{2}+c_1\right ) \\ \end{align*}