MAT137Y1 LEC 20249: Calculus with Proofs (all lecture sections) Pre Class Quiz 62 (13.15, 13.16 and 13.17)

Let ∑ 𝑛 = 1 ∞ 𝑎 𝑛 be a series. Note: 𝑎 𝑛 is not necessary to be positive.  Which of the following statements MUST be true? Select all the correct answers.