Which of the following is the interval of convergence for ∑n=1∞(x−5)nnn\sum_{n=1}^{\infty} \frac{(x-5)^n}{n^n}∑n=1∞nn(x−5)n?
(4,6)(4, 6)(4,6)
[4,6][4, 6][4,6]
(−∞,∞)(-\infty, \infty)(−∞,∞)
[5,5][5, 5][5,5]