Given the series ∑n=1∞(x3)n−1\sum_{n=1}^{\infty} (\frac{x}{3})^{n-1}∑n=1∞(3x)n−1, for what values of xxx does the series converge?
−3<x<3-3 < x < 3−3<x<3
x>3x > 3x>3
x<−3x < -3x<−3
x=3x = 3x=3