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Chapter 12: Q. 72 (page 1175)

In the following exercises, write each sum using summation notation.

9+11+13+15+17+19+21

Short Answer

Expert verified

The sum can be written asΣn=5112n-1

Step by step solution

01

Step 1. Given Information

9+11+13+15+17+19+21

02

Step 2. Write the sum 

We look for a pattern in the terms

9+11+13+15+17+19+21

The sum written in summation notation is

Σn=5112n-1

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Most popular questions from this chapter

Find the seventeenth term of a sequence where the first term is -21and the common difference is two.

Determine if each sequence is geometric. If so indicate the common ratio.

ⓐ.7,21,63,189,567,1,701,…

ⓑ.64,16,4,1,14,116,…

ⓒ.2,4,12,48,240,1,440,…

Write the first five terms of the sequence whose general term isan=2n−5

In the following exercises, expand each binomial using Pascal's Triangle.

(x+y)4

Write the sum using summation notation:1+14+19+116+125.
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