8.6 problem 211

Internal problem ID [3467]

Book: Ordinary differential equations and their solutions. By George Moseley Murphy. 1960
Section: Various 8
Problem number: 211.
ODE order: 1.
ODE degree: 1.

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

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

Solution by Maple

Time used: 0.0 (sec). Leaf size: 14

dsolve(x*diff(y(x),x) = y(x)-x*tan(y(x)/x),y(x), singsol=all)
 

\[ y \left (x \right ) = x \arcsin \left (\frac {1}{c_{1} x}\right ) \]

Solution by Mathematica

Time used: 14.133 (sec). Leaf size: 21

DSolve[x y'[x]==y[x]-x Tan[y[x]/x],y[x],x,IncludeSingularSolutions -> True]
 

\begin{align*} y(x)\to x \arcsin \left (\frac {e^{c_1}}{x}\right ) y(x)\to 0 \end{align*}