Answer
See below.
Work Step by Step
We use the sigma notation to write or describe the sums of combinations of variables in a compact form. We denote this with the symbol $\Sigma$ .
For example : $\Sigma_{n=1}^{50} a_n=a_1+a_2+.....+a_{50}$
University Calculus: Early Transcendentals (3rd Edition)
by Hass, Joel R.; Weir, Maurice D.; Thomas Jr., George B.
Published by
Pearson
ISBN 10:
0321999584
ISBN 13:
978-0-32199-958-0
Chapter 5 - Questions to Guide Your Review - Page 341: 2
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