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MA104 Lab Report 9 - Absolute Convergence; Power SeriesName:Student Number:LabWinter 20151. [11marks]Consider the seriess=anwherean=-134.(a) Determine the sum of the seriess=∞∑n=1-1n3n+1.∞Xn=1n3n+1(b) Issabsolutely convergent or conditionally convergent? Explain your answer.(c) Use the Root Testto verify that the series is absolutely convergent.(d) Determine:(i)s+,the sum of the positive terms of the series.(ii)s-,the sum of the negative terms of the series.