A series Σ a_n converges iff its sequence of partial sums S_N = Σ_{n≤N} a_n converges. Tests: comparison, ratio, root, integral, alternating.
A series Σ a_n converges iff its sequence of partial sums S_N = Σ_{n≤N} a_n converges. Tests: comparison, ratio, root, integral, alternating.