Find the radius of convergence for ∑n=0∞(3x)n\sum_{n=0}^{\infty} (3x)^n∑n=0∞(3x)n.
R=1R=1R=1
R=1/3R=1/3R=1/3
R=3R=3R=3
R=∞R=\inftyR=∞