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Algebra and Trigonometry (MindTap ...

4th Edition
James Stewart + 2 others
ISBN: 9781305071742

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Chapter
Section
BuyFindarrow_forward

Algebra and Trigonometry (MindTap ...

4th Edition
James Stewart + 2 others
ISBN: 9781305071742
Textbook Problem

47-54 ■ Evaluating a sum Find the sum.

i = 1 3 i 2 i

To determine

The sum of i=13i2i.

Explanation

Given:

The summation is given as,

i=13i2i

Approach:

The sum of the first n terms of any sequence can be written summation or sigma notation represented as .

The sigma notation is used as follows,

k=1nak=a1+a2++an

The left-hand side is read as sum of ak from k=1 to k=n.

The letter k is the index of summation and replaced by an integer 0,1,2,n.

Calculation:

The sum of i2i from k=1 to k=3 is,

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Chapter 13 Solutions

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