4.3 problem 3

Internal problem ID [13841]

Book: INTRODUCTORY DIFFERENTIAL EQUATIONS. Martha L. Abell, James P. Braselton. Fourth edition 2014. ElScAe. 2014
Section: Chapter 2. First Order Equations. Exercises 2.2, page 39
Problem number: 3.
ODE order: 1.
ODE degree: 1.

CAS Maple gives this as type [_separable]

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

Solution by Maple

Time used: 0.0 (sec). Leaf size: 16

dsolve(diff(y(x),x)=sqrt(y(x))/x^2,y(x), singsol=all)
 

\[ \sqrt {y \left (x \right )}+\frac {1}{2 x}-c_{1} = 0 \]

Solution by Mathematica

Time used: 0.125 (sec). Leaf size: 25

DSolve[y'[x]==Sqrt[y[x]]/x^2,y[x],x,IncludeSingularSolutions -> True]
 

\begin{align*} y(x)\to \frac {(-1+c_1 x){}^2}{4 x^2} y(x)\to 0 \end{align*}