Algebra and Trigonometry 10th Edition

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

Chapter 11 - 11.1 - Sequences and Series - 11.1 Exercises - Page 779: 104c



Work Step by Step

According to the graph: $a_1=1=∑_{k=1}^1(1)$ $a_2=2=1+1=∑_{k=1}^2(1)$ $a_3=3=1+1+1=∑_{k=1}^3(1)$ ... $a_{10}=10=1+1+1+1+1+1+1+1+1+1=∑_{k=1}^{10}(1)$ $a_n=∑_{k=1}^{n}(1)$
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