1.2 problem 2

Internal problem ID [12419]

Book: DIFFERENTIAL and INTEGRAL CALCULUS. VOL I. by N. PISKUNOV. MIR PUBLISHERS, Moscow 1969.
Section: Chapter 8. Differential equations. Exercises page 595
Problem number: 2.
ODE order: 1.
ODE degree: 2.

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

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

Solution by Maple

Time used: 0.078 (sec). Leaf size: 22

dsolve(diff(y(x),x)^2-diff(y(x),x)-x*diff(y(x),x)+y(x)=0,y(x), singsol=all)
 

\begin{align*} y \left (x \right ) &= \frac {\left (1+x \right )^{2}}{4} \\ y \left (x \right ) &= c_{1} \left (-c_{1} +x +1\right ) \\ \end{align*}

Solution by Mathematica

Time used: 0.011 (sec). Leaf size: 28

DSolve[(y'[x])^2-y'[x]-x*y'[x]+y[x]==0,y[x],x,IncludeSingularSolutions -> True]
 

\begin{align*} y(x)\to c_1 (x+1-c_1) \\ y(x)\to \frac {1}{4} (x+1)^2 \\ \end{align*}