CalculusChallengeInfinite Sequences and Series ShareInfinite Sequences and Series · Challenge problemFind the radius of convergence of ∑n=0∞(3n)!(n!)3 xn\displaystyle\sum_{n=0}^{\infty}\frac{(3n)!}{(n!)^3}\,x^nn=0∑∞(n!)3(3n)!xn.Check Show answer Walk through it step by step Practice more like this Review this concept