CalculusChallenge ShareCalculus · Challenge problemThe power series ∑n=1∞xn3n\displaystyle\sum_{n=1}^{\infty} \frac{x^n}{3^n}n=1∑∞3nxn converges exactly for ∣x∣<R|x| < R∣x∣<R. Find the radius RRR.Check Show answer Walk through it step by step Practice more like this