2.15 problem 40

Internal problem ID [3304]

Book: Ordinary differential equations and their solutions. By George Moseley Murphy. 1960
Section: Various 2
Problem number: 40.
ODE order: 1.
ODE degree: 1.

CAS Maple gives this as type [_Riccati]

\[ \boxed {y^{\prime }-y^{2}=-f \left (x \right )^{2}+f^{\prime }\left (x \right )} \]

Solution by Maple

Time used: 0.0 (sec). Leaf size: 45

dsolve(diff(y(x),x)+f(x)^2 = diff(f(x),x)+y(x)^2,y(x), singsol=all)
 

\[ y \left (x \right ) = \frac {-f \left (x \right ) \left (\int {\mathrm e}^{2 \left (\int f \left (x \right )d x \right )}d x \right )+f \left (x \right ) c_{1} +{\mathrm e}^{2 \left (\int f \left (x \right )d x \right )}}{c_{1} -\left (\int {\mathrm e}^{2 \left (\int f \left (x \right )d x \right )}d x \right )} \]

Solution by Mathematica

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

DSolve[y'[x]+f[x]^2==f'[x]+y[x]^2,y[x],x,IncludeSingularSolutions -> True]
 

Not solved