What is the radius of convergence RRR for the power series ∑n=0∞3nxn\sum_{n=0}^{\infty} 3^n x^n∑n=0∞3nxn?
R=3R = 3R=3
R=13R = \frac{1}{3}R=31
R=1R = 1R=1
R=∞R = \inftyR=∞