6.7 problem 7

Internal problem ID [4517]

Book: Fundamentals of Differential Equations. By Nagle, Saff and Snider. 9th edition. Boston. Pearson 2018.
Section: Chapter 8, Series solutions of differential equations. Section 8.4. page 449
Problem number: 7.
ODE order: 1.
ODE degree: 1.

CAS Maple gives this as type [_separable]

Solve \begin {gather*} \boxed {y^{\prime }+2 \left (x -1\right ) y=0} \end {gather*} With the expansion point for the power series method at \(x = 1\).

Solution by Maple

Time used: 0.0 (sec). Leaf size: 21

Order:=6; 
dsolve(diff(y(x),x)+2*(x-1)*y(x)=0,y(x),type='series',x=1);
 

\[ y \relax (x ) = \left (1-\left (x -1\right )^{2}+\frac {\left (x -1\right )^{4}}{2}\right ) y \relax (1)+O\left (x^{6}\right ) \]

Solution by Mathematica

Time used: 0.001 (sec). Leaf size: 24

AsymptoticDSolveValue[y'[x]+2*(x-1)*y[x]==0,y[x],{x,1,5}]
 

\[ y(x)\to c_1 \left (\frac {1}{2} (x-1)^4-(x-1)^2+1\right ) \]