17.2 problem Ex 2

Internal problem ID [10212]

Book: An elementary treatise on differential equations by Abraham Cohen. DC heath publishers. 1906
Section: Chapter IV, differential equations of the first order and higher degree than the first. Article 28. Summary. Page 59
Problem number: Ex 2.
ODE order: 1.
ODE degree: 2.

CAS Maple gives this as type [[_1st_order, _with_linear_symmetries], _rational, _Clairaut]

Solve \begin {gather*} \boxed {y^{\prime } y-\left (x -b \right ) \left (y^{\prime }\right )^{2}-a=0} \end {gather*}

Solution by Maple

Time used: 0.031 (sec). Leaf size: 32

dsolve(y(x)*diff(y(x),x)=(x-b)*diff(y(x),x)^2+a,y(x), singsol=all)
 

\begin{align*} y \relax (x ) = x c_{1}+\frac {-b c_{1}^{2}+a}{c_{1}} \\ y \relax (x ) = c_{1} \sqrt {b -x} \\ \end{align*}

Solution by Mathematica

Time used: 0.0 (sec). Leaf size: 0

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

Not solved