Problem #12: Use the ratio test to determine which of the following series converge. (i) Σ n=1 ∞ (ii) Σ n=1 ∞ (iii) 3n+1

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Problem #12: Use the ratio test to determine which of the following series converge. (i) Σ n=1 ∞ (ii) Σ n=1 ∞ (iii) 3n+1 (n + 5)! (-1) 9n n=2 Just Save Problem #12: Select ✓ n (A) (i) and (ii) only (B) (i) and (iii) only (C) (iii) only (D) none of them (E) (ii) only (F) (ii) and (iii) only (G) (i) only (H) all of them n! n² In n Submit Problem #12 for Grading Problem #12 Attempt #1 Attempt #2 Your Answer: Your Mark: Attempt #3