4.32 problem Problem 48

Internal problem ID [2187]

Book: Differential equations and linear algebra, Stephen W. Goode and Scott A Annin. Fourth edition, 2015
Section: Chapter 1, First-Order Differential Equations. Section 1.8, Change of Variables. page 79
Problem number: Problem 48.
ODE order: 1.
ODE degree: 1.

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

Solve \begin {gather*} \boxed {y^{\prime }-\frac {y}{\left (\pi -1\right ) x}-\frac {3 x y^{\pi }}{1-\pi }=0} \end {gather*}

Solution by Maple

Time used: 0.012 (sec). Leaf size: 21

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

\[ y \relax (x ) = \left (\frac {x^{3}+c_{1}}{x}\right )^{-\frac {1}{\pi -1}} \]

Solution by Mathematica

Time used: 0.771 (sec). Leaf size: 28

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

\begin{align*} y(x)\to \left (\frac {x^3+c_1}{x}\right ){}^{\frac {1}{1-\pi }} \\ y(x)\to 0 \\ \end{align*}