Find the sum of the series (-1)" n² + 1' n=1

College Algebra
1st Edition
ISBN:9781938168383
Author:Jay Abramson
Publisher:Jay Abramson
Chapter9: Sequences, Probability And Counting Theory
Section: Chapter Questions
Problem 25RE: Use the formula for the sum of the first nterms of a geometric series to find S9 , for the series...
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Question
1. Find the sum of the series
(-1)"
n2 + 1
(The answer should be a real number).
ANSWER: (T / sinh 7 – 1)/2
Transcribed Image Text:1. Find the sum of the series (-1)" n2 + 1 (The answer should be a real number). ANSWER: (T / sinh 7 – 1)/2
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