Calculus: Early Transcendentals 8th Edition

Published by Cengage Learning
ISBN 10: 1285741552
ISBN 13: 978-1-28574-155-0

APPENDIX E - Sigma Notation - E Exercises: 12

Answer

$\sum_{i=3}^{7}\sqrt{i}$

Work Step by Step

We contract the sum into sigma notation by noting that it follows the pattern of a sum of square roots (e.g. $\sqrt{i}$) from 3 to 7: $\displaystyle \sqrt{3}+\sqrt{4}+\sqrt{5}+\sqrt{6}+\sqrt{7}=\sum_{i=3}^{7}\sqrt{i}$
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