Try another version of this question Get help: Box 1: Select the best answer Box 2: Select the best answer Question 1
Does the series `sum_{n=4}^{oo} \ 1/n` converge or diverge?
Does the series `sum_{n=4}^{oo} \ (- 1)^n/n` converge or diverge?
diverges (harmonic series)
converges (alternating series test)