4.19 problem 81

Internal problem ID [14991]

Book: A book of problems in ordinary differential equations. M.L. KRASNOV, A.L. KISELYOV, G.I. MARKARENKO. MIR, MOSCOW. 1983
Section: Section 4. Equations with variables separable and equations reducible to them. Exercises page 38
Problem number: 81.
ODE order: 1.
ODE degree: 1.

CAS Maple gives this as type [_separable]

\[ \boxed {y^{\prime }-\frac {y}{x}=0} \] With initial conditions \begin {align*} [y \left (0\right ) = 0] \end {align*}

Solution by Maple

Time used: 0.0 (sec). Leaf size: 7

dsolve([diff(y(x),x)=y(x)/x,y(0) = 0],y(x), singsol=all)
 

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

Solution by Mathematica

Time used: 0.001 (sec). Leaf size: 6

DSolve[{y'[x]==y[x]/x,{y[0]==0}},y[x],x,IncludeSingularSolutions -> True]
 

\[ y(x)\to 0 \]