1.39 problem 39

Internal problem ID [7428]

Book: Second order enumerated odes
Section: section 1
Problem number: 39.
ODE order: 2.
ODE degree: 1.

CAS Maple gives this as type [[_2nd_order, _with_linear_symmetries]]

\[ \boxed {y^{\prime \prime }+y=x} \]

Solution by Maple

Time used: 0.0 (sec). Leaf size: 14

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

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

Solution by Mathematica

Time used: 0.011 (sec). Leaf size: 17

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

\[ y(x)\to x+c_1 \cos (x)+c_2 \sin (x) \]