Answer
$14250$
Work Step by Step
$\sum ^{75}_{i=1}5i=5\sum ^{75}_{i=1}i=5\times \left( \dfrac {n\times \left( n+1\right) }{2}\right) =\left( 5\times \dfrac {75\times \left( 75+1\right) }{2}\right) =14250$
Calculus 10th Edition
by Larson, Ron; Edwards, Bruce H.
Published by
Brooks Cole
ISBN 10:
1-28505-709-0
ISBN 13:
978-1-28505-709-5
Chapter 4 - Integration - Review Exercises - Page 312: 24
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