4.10 problem 10

Internal problem ID [12646]

Book: Ordinary Differential Equations by Charles E. Roberts, Jr. CRC Press. 2010
Section: Chapter 2. The Initial Value Problem. Exercises 2.2, page 53
Problem number: 10.
ODE order: 1.
ODE degree: 1.

CAS Maple gives this as type [[_homogeneous, `class G`]]

\[ \boxed {y^{\prime }-\left (y x \right )^{\frac {1}{3}}=0} \]

Solution by Maple

Time used: 0.0 (sec). Leaf size: 87

dsolve(diff(y(x),x)=(x*y(x))^(1/3),y(x), singsol=all)
 

\[ -\frac {\left (\left (-4 x^{5} c_{1} +32 y \left (x \right )^{2} c_{1} x +2 x \right ) \left (y \left (x \right ) x \right )^{\frac {2}{3}}+\left (x^{3}+4 \left (y \left (x \right ) x \right )^{\frac {1}{3}} y \left (x \right )\right ) \left (x^{4} c_{1} -8 c_{1} y \left (x \right )^{2}+1\right )\right ) x}{\left (x^{4}-8 y \left (x \right )^{2}\right ) \left (-2 \left (y \left (x \right ) x \right )^{\frac {2}{3}}+x^{2}\right )^{2}} = 0 \]

Solution by Mathematica

Time used: 4.979 (sec). Leaf size: 35

DSolve[y'[x]==(x*y[x])^(1/3),y[x],x,IncludeSingularSolutions -> True]
                                                                                    
                                                                                    
 

\begin{align*} y(x)\to \frac {\left (3 x^{4/3}+4 c_1\right ){}^{3/2}}{6 \sqrt {6}} \\ y(x)\to 0 \\ \end{align*}