Find the radius of convergence for ∑n=0∞xn2n\sum_{n=0}^{\infty} \frac{x^n}{2^n}∑n=0∞2nxn.
R=1R = 1R=1
R=2R = 2R=2
R=0R = 0R=0
R=∞R = \inftyR=∞