Answer
$9455$
Work Step by Step
I know that $\sum_{k=1}^{n} (k^2)=\frac{n(n+1)(2n+1)}{6}.$
Hence $\sum_{k=1}^{30} (k^2)=\frac{30(30+1)(2(30)+1)}{6}=9455$
Precalculus (10th Edition)
by Sullivan, Michael
Published by
Pearson
ISBN 10:
0-32197-907-9
ISBN 13:
978-0-32197-907-0
Chapter 12 - Sequences; Induction; the Binomial Theorem - Chapter Review - Review Exercises - Page 839: 13
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