Internal problem ID [3643]
Book: Ordinary differential equations and their solutions. By George Moseley Murphy.
1960
Section: Various 31
Problem number: 916.
ODE order: 1.
ODE degree: 2.
CAS Maple gives this as type [_quadrature]
\[ \boxed {\left (a^{2}+x^{2}\right ) {y^{\prime }}^{2}-b^{2}=0} \]
✓ Solution by Maple
Time used: 0.031 (sec). Leaf size: 40
dsolve((a^2+x^2)*diff(y(x),x)^2 = b^2,y(x), singsol=all)
\begin{align*} y \left (x \right ) = b \ln \left (x +\sqrt {a^{2}+x^{2}}\right )+c_{1} \\ y \left (x \right ) = -b \ln \left (x +\sqrt {a^{2}+x^{2}}\right )+c_{1} \\ \end{align*}
✓ Solution by Mathematica
Time used: 0.005 (sec). Leaf size: 48
DSolve[(a^2+x^2) (y'[x])^2==b^2,y[x],x,IncludeSingularSolutions -> True]
\begin{align*} y(x)\to -b \text {arctanh}\left (\frac {x}{\sqrt {a^2+x^2}}\right )+c_1 \\ y(x)\to b \text {arctanh}\left (\frac {x}{\sqrt {a^2+x^2}}\right )+c_1 \\ \end{align*}