If ∑n=0∞anxn\sum_{n=0}^{\infty} a_n x^n∑n=0∞anxn has radius of convergence R=5R=5R=5, what is the radius of convergence of ∑n=0∞an2xn\sum_{n=0}^{\infty} a_n^2 x^n∑n=0∞an2xn?
252525
555
101010
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