Why sometimes we search solution of power series in the way:(adsbygoogle = window.adsbygoogle || []).push({});

[tex]y(x)=\sum^{\infty}_{n=0}a_nx^n[/tex]

and sometimes

[tex]y(x)=\sum^{\infty}_{n=0}a_nx^{n+1}[/tex]???

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# Potential series method

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