Let an = cos" G) for any n e N. Which of the following is convergent? Justify your answer. (a) The sequence {an}n>1• (b) The series). An: n=1

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Chapter1: Functions And Models
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1. Let an = cos" (-) for any n E N. Which of the following is convergent? Justify your answer.
(a) The sequence
{an}n21*
(b) The series
An.
n=1
Transcribed Image Text:1. Let an = cos" (-) for any n E N. Which of the following is convergent? Justify your answer. (a) The sequence {an}n21* (b) The series An. n=1
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