Question
Asked Dec 20, 2019
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Given the sequence defined by an = n2 − 2n, find the fifth partial sum.

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Expert Answer

Step 1

To find the fifth partial sum from the given sequence of nth terms.

Step 2

Given information:

The sequence is shown below.

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a, = n – 2n

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Step 3

Formula of 5th pa...

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Σα,--2η Ca, = n² – 2n .(1) =1 where 1,2,3,4,5 a, = n² – 2n E 1=1 (Plugn=1,2, 3, 4, 5) Za, = a, + a, +a; +a¸ +a; (2) 1=1 WI mWI

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Math

Algebra