Suppose the series an converges to a number S. Let_R=S-Sn. n=1 Determine the truth of the following statement and give a reason why your answer is correct: |R₂|≤ lan+11. True. Rn=an+1 for any series. O False. Rn= ∞ ∞ ak, so this bound is never valid. k=n+1 False. This bound is only guaranteed to work if the series is alternating. True. Since the series converges we know_lim_ an=0 so the largest contribution is given by an+1. n-8

Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
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Suppose the series an converges to a number S. Let Rn=S-Sn.
n=1
Determine the truth of the following statement and give a reason why your answer is correct:
|R₂|≤ lan+11.
True. Rn=an+1 for any series.
False. Rn=
∞
k=n+1
ak, so this bound is never valid.
False. This bound is only guaranteed to work if the series is alternating.
True. Since the series converges we know lim an=0 so the largest contribution is given by an+1.
n→∞
Transcribed Image Text:Suppose the series an converges to a number S. Let Rn=S-Sn. n=1 Determine the truth of the following statement and give a reason why your answer is correct: |R₂|≤ lan+11. True. Rn=an+1 for any series. False. Rn= ∞ k=n+1 ak, so this bound is never valid. False. This bound is only guaranteed to work if the series is alternating. True. Since the series converges we know lim an=0 so the largest contribution is given by an+1. n→∞
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