   Chapter 13, Problem 2RE ### Mathematical Applications for the ...

11th Edition
Ronald J. Harshbarger + 1 other
ISBN: 9781305108042

#### Solutions

Chapter
Section ### Mathematical Applications for the ...

11th Edition
Ronald J. Harshbarger + 1 other
ISBN: 9781305108042
Textbook Problem

# Use formulas to simplify ∑ i = l n 3 i n 3

To determine

To calculate: The value of the expression i=1n3in3.

Explanation

Given Information:

The provided expression is i=1n3in3.

Formula Used:

The sum of n numbers x1, x2, x3,,xn is given by

k=1nxk=x1+x2++xn

The sum of first n natural numbers is given by

k=1nk=n(n+1)2

Calculation:

Consider the provided expression i=1n3in3

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