Property of radius of convergence

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SUMMARY

The discussion confirms that if the primitive (antiderivative) of a power series \(\Sigma N A_N Z^{N-1}\) exists, both the original series and its primitive will share the same radius of convergence. This conclusion is definitive and applies to any power series where the primitive is defined.

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librastar
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I have a question regarding the radius of convergence and hopely someone can help me with it.

Suppose \SigmaNANZN-1 is given and if its primitive exists, will these two polynomials have the same radius of convergence?
 
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Yes.
 
LCKurtz said:
Yes.

Thank you very much.
 

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