Internal problem ID [6893]
Book: Elementary differential equations. Rainville, Bedient, Bedient. Prentice Hall. NJ. 8th
edition. 1997.
Section: CHAPTER 17. Power series solutions. 17.5. Solutions Near an Ordinary Point. Exercises
page 355
Problem number: 5.
ODE order: 2.
ODE degree: 1.
CAS Maple gives this as type [[_2nd_order, _exact, _linear, _homogeneous]]
\[ \boxed {\left (-4 x^{2}+1\right ) y^{\prime \prime }+8 y=0} \] With the expansion point for the power series method at \(x = 0\).
✓ Solution by Maple
Time used: 0.0 (sec). Leaf size: 34
Order:=8; dsolve((1-4*x^2)*diff(y(x),x$2)+8*y(x)=0,y(x),type='series',x=0);
\[ y \left (x \right ) = \left (-4 x^{2}+1\right ) y \left (0\right )+\left (x -\frac {4}{3} x^{3}-\frac {16}{15} x^{5}-\frac {64}{35} x^{7}\right ) D\left (y \right )\left (0\right )+O\left (x^{8}\right ) \]
✓ Solution by Mathematica
Time used: 0.001 (sec). Leaf size: 40
AsymptoticDSolveValue[(1-4*x^2)*y''[x]+8*y[x]==0,y[x],{x,0,7}]
\[ y(x)\to c_1 \left (1-4 x^2\right )+c_2 \left (-\frac {64 x^7}{35}-\frac {16 x^5}{15}-\frac {4 x^3}{3}+x\right ) \]