4. Use the ratio test to determine whether or not the following series converges. (Hint: lim n→∞ (n + 1)² = e.) n 5. Show that the following series diverges. (Hint: lim cos n→∞ 1 n = 1.) ∞ nn Σ (2n)! n=1 Σtan (3) n=1
4. Use the ratio test to determine whether or not the following series converges. (Hint: lim n→∞ (n + 1)² = e.) n 5. Show that the following series diverges. (Hint: lim cos n→∞ 1 n = 1.) ∞ nn Σ (2n)! n=1 Σtan (3) n=1
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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Transcribed Image Text:4. Use the ratio test to determine whether or not the following series converges.
(Hint: lim
n→∞
(n + 1)² = e.)
n
5. Show that the following series diverges.
(Hint: lim cos
n→∞
1
n
= 1.)
∞
nn
Σ (2n)!
n=1
Σtan (3)
n=1
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