Algebra and Trigonometry 10th Edition

Published by Cengage Learning
ISBN 10: 9781337271172
ISBN 13: 978-1-33727-117-2

Chapter 11 - 11.2 - Arithmetic Sequences and Partial Sums - 11.2 Exercises - Page 788: 87c


See below.

Work Step by Step

As we can see, the sums of the first $n$ consecutive odd integers is $n^2$. $1+3+5+7+9+11=36=6^2$ $1+3+5+7+9=25=5^2$ $1+3+5+7=16=4^2$ $1+3+5=9=3^2$ $1+3=4=2^2$
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