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Q9) Find the rule for the nth term (term an )of the following sequence: a) 2, 6, 18, 54, ... b) 1,-1, 1, -1,... с) 12, 6, 0, -6, -12, ...

Q9) Find the rule for the nth term (term an )of the following sequence: a) 2, 6, 18, 54, ... b) 1,-1, 1, -1,... с) 12, 6, 0, -6, -12, ...

Advanced Engineering Mathematics
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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Q9) Find the rule for the nth term (term an )of the following sequence: а) 2, 6, 18, 54, ... b) 1,-1, 1, -1,.... с) 12, 6, 0, -6, -12, ... d) 15, 8, 1, -6, -13, -20,.. Q10) Find the following summation: п 3 ΣΣ 2 i=n-2 i=1 > (5 + v4') i=0 п (5jn) j=n-10
Transcribed Image Text:Q9) Find the rule for the nth term (term an )of the following sequence: а) 2, 6, 18, 54, ... b) 1,-1, 1, -1,.... с) 12, 6, 0, -6, -12, ... d) 15, 8, 1, -6, -13, -20,.. Q10) Find the following summation: п 3 ΣΣ 2 i=n-2 i=1 > (5 + v4') i=0 п (5jn) j=n-10
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