For each series, determine whether it converges absolutely, converges conditionally, or diverges. (a) Σn=0, ∞   (-1)n cos n / 3n - 2 (b) Σn=0, ∞   √n + (-1)n / 2 √n - 3n3

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter10: Sequences, Series, And Probability
Section10.1: Infinite Sequences And Summation Notation
Problem 72E
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For each series, determine whether it converges absolutely, converges conditionally, or diverges.

(a) Σn=0, ∞   (-1)n cos n / 3n - 2

(b) Σn=0, ∞   √n + (-1)n / 2 √n - 3n3

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