1.355 problem 356

Internal problem ID [8692]

Book: Differential Gleichungen, E. Kamke, 3rd ed. Chelsea Pub. NY, 1948
Section: Chapter 1, linear first order
Problem number: 356.
ODE order: 1.
ODE degree: 1.

CAS Maple gives this as type [_exact]

\[ \boxed {\left (x^{2} \cos \left (y\right )+2 y \sin \left (x \right )\right ) y^{\prime }+2 \sin \left (y\right ) x +y^{2} \cos \left (x \right )=0} \]

Solution by Maple

Time used: 0.031 (sec). Leaf size: 19

dsolve((x^2*cos(y(x))+2*y(x)*sin(x))*diff(y(x),x)+2*x*sin(y(x))+y(x)^2*cos(x) = 0,y(x), singsol=all)
 

\[ y \left (x \right )^{2} \sin \left (x \right )+x^{2} \sin \left (y \left (x \right )\right )+c_{1} = 0 \]

Solution by Mathematica

Time used: 0.203 (sec). Leaf size: 21

DSolve[2*x*Sin[y[x]] + Cos[x]*y[x]^2 + (x^2*Cos[y[x]] + 2*Sin[x]*y[x])*y'[x]==0,y[x],x,IncludeSingularSolutions -> True]
 

\[ \text {Solve}\left [x^2 \sin (y(x))+y(x)^2 \sin (x)=c_1,y(x)\right ] \]