Which of the following statements are true for the given series \(x + \frac{{{2^2}{x^2}}}{{2!}} + \frac{{{3^3}{x^3}}}{{3!}} + \frac{{{4^4}{x^4}}}{{4!}} + \ldots \infty \)
1
At x = 1/e, series converges
2
At x = 1/e, series diverges
3
At x = 1/2e, series diverges
4
At x = 2/e, series converges