Use the ratio test to determine whether∑n=12∞n2+55n converges or diverges.
(a) Find the ratio of successive terms. Write your answer as a fully simplified fraction. For n≥12, limn→∞∣∣∣an+1an∣∣∣=limn→∞
(b) Evaluate the limit in the previous part. Enter ∞
as infinity and −∞ as -infinity. If the limit does
not exist, enter DNE.
(c) By the ratio test, does the series converge, diverge, or is the test inconclusive?
Get Answers For Free
Most questions answered within 1 hours.