Calculus 8th Edition

Published by Cengage
ISBN 10: 1285740629
ISBN 13: 978-1-28574-062-1

Appendix E - Sigma Notation - E Exercises - Page A38: 12



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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