How to find radius of convergence of Power series with recurrence relation containing 2 terms?

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I have following ODE problem

$(x)\frac{d^2y}{dx^2}+\frac{dy}{dx}+y/x=0$

The power series solution of that ODE near x=1 is

$y_{k+2}=-[\frac{(2k+1)(k+1)y_{k+1}+(k^2+1)y_k}{(k+2)(k+1)}]$

I have to find Radius of Convergence.

As $k\to \infty$

$y_{k+2}=-[\frac{2y_{k+1}+y_k}{1}]$

$\frac{y_{k+2}}{y_{k+1}}=-2-\frac{y_{k}}{y_{k+1}}$

Let $l=\lim_{k\to \infty}\frac{y_{k+2}}{y_{k+1}}$ ....My Assumption Limit exist and equals to ROC

then $l=-2-1/l$

Solving this I get $|l|=1$

So ROC is 1

Is this solution Mathematically Look correct? Please give me a suggestion

Any Help will be appreciated