9.6 problem 6

Internal problem ID [10504]

Book: Handbook of exact solutions for ordinary differential equations. By Polyanin and Zaitsev. Second edition
Section: Chapter 1, section 1.2. Riccati Equation. subsection 1.2.6-1. Equations with sine
Problem number: 6.
ODE order: 1.
ODE degree: 1.

CAS Maple gives this as type [_Riccati]

\[ \boxed {y^{\prime }-\lambda \sin \left (\lambda x \right ) y^{2}=\lambda \sin \left (\lambda x \right )^{3}} \]

Solution by Maple

Time used: 0.016 (sec). Leaf size: 51

dsolve(diff(y(x),x)=lambda*sin(lambda*x)*y(x)^2+lambda*sin(lambda*x)^3,y(x), singsol=all)
 

\[ y \left (x \right ) = \frac {2 \,{\mathrm e}^{\frac {\cos \left (2 x \lambda \right )}{2}+\frac {1}{2}} c_{1} -\cos \left (x \lambda \right ) \sqrt {\pi }\, \left (\operatorname {erfi}\left (\cos \left (x \lambda \right )\right ) c_{1} +1\right )}{\sqrt {\pi }\, \left (\operatorname {erfi}\left (\cos \left (x \lambda \right )\right ) c_{1} +1\right )} \]

Solution by Mathematica

Time used: 0.0 (sec). Leaf size: 0

DSolve[y'[x]==\[Lambda]*Sin[\[Lambda]*x]*y[x]^2+\[Lambda]*Sin[\[Lambda]*x]^3,y[x],x,IncludeSingularSolutions -> True]
 

Not solved