Prove: If the power series k=0 ckxk has radius of convergenceR, then the series k=0

Chapter 9, Problem 65

(choose chapter or problem)

Prove: If the power series \(\sum_{k=0}^{\infty} c_{k} x^{k}\) has radius of convergence \(R\), then the series \(\sum_{k=0}^{\infty} c_{k} x^{2k}\) has radius of convergence \(\sqrt{R}\).

Equation Transcription:

Text Transcription:

sum_k=0^ infinity c_k x^k

sum_k=0^ infinity c_k x^2k

sqrtR

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