6.48 problem 53

Internal problem ID [14336]

Book: INTRODUCTORY DIFFERENTIAL EQUATIONS. Martha L. Abell, James P. Braselton. Fourth edition 2014. ElScAe. 2014
Section: Chapter 2. First Order Equations. Exercises 2.4, page 57
Problem number: 53.
ODE order: 1.
ODE degree: 1.

CAS Maple gives this as type [_rational, [_Abel, `2nd type`, `class B`]]

\[ \boxed {5 t y+4 y^{2}+\left (t^{2}+2 t y\right ) y^{\prime }=-1} \]

Solution by Maple

Time used: 0.0 (sec). Leaf size: 59

dsolve((5*t*y(t)+4*y(t)^2+1)+(t^2+2*t*y(t))*diff(y(t),t)=0,y(t), singsol=all)
 

\begin{align*} y \left (t \right ) &= \frac {-t^{3}-\sqrt {t^{6}-t^{4}-4 c_{1}}}{2 t^{2}} \\ y \left (t \right ) &= \frac {-t^{3}+\sqrt {t^{6}-t^{4}-4 c_{1}}}{2 t^{2}} \\ \end{align*}

Solution by Mathematica

Time used: 0.611 (sec). Leaf size: 84

DSolve[(5*t*y[t]+4*y[t]^2+1)+(t^2+2*t*y[t])*y'[t]==0,y[t],t,IncludeSingularSolutions -> True]
 

\begin{align*} y(t)\to -\frac {t^5+\sqrt {t^3} \sqrt {t^7-t^5+4 c_1 t}}{2 t^4} \\ y(t)\to -\frac {t}{2}+\frac {\sqrt {t^3} \sqrt {t^7-t^5+4 c_1 t}}{2 t^4} \\ \end{align*}