1.3 problem 3

Internal problem ID [8340]

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

CAS Maple gives this as type [[_linear, `class A`]]

\[ \boxed {y^{\prime }+a y=b \sin \left (c x \right )} \]

Solution by Maple

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

dsolve(diff(y(x),x) + a*y(x) - b*sin(c*x)=0,y(x), singsol=all)
 

\[ y \left (x \right ) = \frac {{\mathrm e}^{-a x} c_{1} \left (a^{2}+c^{2}\right )+b \left (-c \cos \left (c x \right )+\sin \left (c x \right ) a \right )}{a^{2}+c^{2}} \]

Solution by Mathematica

Time used: 0.086 (sec). Leaf size: 40

DSolve[y'[x] + a*y[x] - b*Sin[c*x]==0,y[x],x,IncludeSingularSolutions -> True]
                                                                                    
                                                                                    
 

\[ y(x)\to \frac {b (a \sin (c x)-c \cos (c x))}{a^2+c^2}+c_1 e^{-a x} \]