). Determine whether the series ∞ 2 cos(n?) n   n = 1 converges absolutely, converges conditionally or diverges. ∞ 2 cos(n?) n   n = 1

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter10: Sequences, Series, And Probability
Section10.3: Geometric Sequences
Problem 44E
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4). Determine whether the series

2 cos(n?)
n
 
n = 1

converges absolutely, converges conditionally or diverges.

2 cos(n?)
n
 
n = 1
converges absolutely.
2 cos(n?)
n
 
n = 1
converges conditionally.    
2 cos(n?)
n
 
n = 1
diverges.

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